/** * Callback for in-page scrollbars. */ void html_overflow_scroll_callback(void *client_data, struct scrollbar_msg_data *scrollbar_data) { struct html_scrollbar_data *data = client_data; html_content *html = (html_content *)data->c; struct box *box = data->box; union content_msg_data msg_data; switch(scrollbar_data->msg) { case SCROLLBAR_MSG_MOVED: html__redraw_a_box(html, box); break; case SCROLLBAR_MSG_SCROLL_START: { struct rect rect = { .x0 = scrollbar_data->x0, .y0 = scrollbar_data->y0, .x1 = scrollbar_data->x1, .y1 = scrollbar_data->y1 }; browser_window_set_drag_type(html->bw, DRAGGING_CONTENT_SCROLLBAR, &rect); html->scrollbar = scrollbar_data->scrollbar; } break; case SCROLLBAR_MSG_SCROLL_FINISHED: html->scrollbar = NULL; browser_window_set_drag_type(html->bw, DRAGGING_NONE, NULL); msg_data.pointer = BROWSER_POINTER_AUTO; content_broadcast(data->c, CONTENT_MSG_POINTER, msg_data); break; } } /** * End overflow scroll scrollbar drags * * \param scroll scrollbar widget * \param mouse state of mouse buttons and modifier keys * \param x coordinate of mouse * \param y coordinate of mouse */ void html_overflow_scroll_drag_end(struct scrollbar *scrollbar, browser_mouse_state mouse, int x, int y) { int scroll_mouse_x, scroll_mouse_y, box_x, box_y; struct html_scrollbar_data *data = scrollbar_get_data(scrollbar); struct box *box; box = data->box; box_coords(box, &box_x, &box_y); if (scrollbar_is_horizontal(scrollbar)) { scroll_mouse_x = x - box_x; scroll_mouse_y = y - (box_y + box->padding[TOP] + box->height + box->padding[BOTTOM] - SCROLLBAR_WIDTH); scrollbar_mouse_drag_end(scrollbar, mouse, scroll_mouse_x, scroll_mouse_y); } else { scroll_mouse_x = x - (box_x + box->padding[LEFT] + box->width + box->padding[RIGHT] - SCROLLBAR_WIDTH); scroll_mouse_y = y - box_y; scrollbar_mouse_drag_end(scrollbar, mouse, scroll_mouse_x, scroll_mouse_y); } }
void html_mouse_action(struct content *c, struct browser_window *bw, browser_mouse_state mouse, int x, int y) { html_content *html = (html_content *) c; enum { ACTION_NONE, ACTION_SUBMIT, ACTION_GO } action = ACTION_NONE; const char *title = 0; nsurl *url = 0; const char *target = 0; char status_buffer[200]; const char *status = 0; browser_pointer_shape pointer = BROWSER_POINTER_DEFAULT; bool imagemap = false; int box_x = 0, box_y = 0; int gadget_box_x = 0, gadget_box_y = 0; int html_object_pos_x = 0, html_object_pos_y = 0; int text_box_x = 0; struct box *url_box = 0; struct box *gadget_box = 0; struct box *text_box = 0; struct box *box; struct form_control *gadget = 0; hlcache_handle *object = NULL; struct box *html_object_box = NULL; struct browser_window *iframe = NULL; struct box *next_box; struct box *drag_candidate = NULL; struct scrollbar *scrollbar = NULL; plot_font_style_t fstyle; int scroll_mouse_x = 0, scroll_mouse_y = 0; int padding_left, padding_right, padding_top, padding_bottom; browser_drag_type drag_type = browser_window_get_drag_type(bw); union content_msg_data msg_data; struct dom_node *node = NULL; if (drag_type != DRAGGING_NONE && !mouse && html->visible_select_menu != NULL) { /* drag end: select menu */ form_select_mouse_drag_end(html->visible_select_menu, mouse, x, y); } if (html->visible_select_menu != NULL) { box = html->visible_select_menu->box; box_coords(box, &box_x, &box_y); box_x -= box->border[LEFT].width; box_y += box->height + box->border[BOTTOM].width + box->padding[BOTTOM] + box->padding[TOP]; status = form_select_mouse_action(html->visible_select_menu, mouse, x - box_x, y - box_y); if (status != NULL) { msg_data.explicit_status_text = status; content_broadcast(c, CONTENT_MSG_STATUS, msg_data); } else { int width, height; form_select_get_dimensions(html->visible_select_menu, &width, &height); html->visible_select_menu = NULL; browser_window_redraw_rect(bw, box_x, box_y, width, height); } return; } if (!mouse && html->scrollbar != NULL) { /* drag end: scrollbar */ html_overflow_scroll_drag_end(html->scrollbar, mouse, x, y); } if (html->scrollbar != NULL) { struct html_scrollbar_data *data = scrollbar_get_data(html->scrollbar); box = data->box; box_coords(box, &box_x, &box_y); if (scrollbar_is_horizontal(html->scrollbar)) { scroll_mouse_x = x - box_x ; scroll_mouse_y = y - (box_y + box->padding[TOP] + box->height + box->padding[BOTTOM] - SCROLLBAR_WIDTH); status = scrollbar_mouse_action(html->scrollbar, mouse, scroll_mouse_x, scroll_mouse_y); } else { scroll_mouse_x = x - (box_x + box->padding[LEFT] + box->width + box->padding[RIGHT] - SCROLLBAR_WIDTH); scroll_mouse_y = y - box_y; status = scrollbar_mouse_action(html->scrollbar, mouse, scroll_mouse_x, scroll_mouse_y); } msg_data.explicit_status_text = status; content_broadcast(c, CONTENT_MSG_STATUS, msg_data); return; } /* Content related drags handled by now */ browser_window_set_drag_type(bw, DRAGGING_NONE, NULL); /* search the box tree for a link, imagemap, form control, or * box with scrollbars */ box = html->layout; /* Consider the margins of the html page now */ box_x = box->margin[LEFT]; box_y = box->margin[TOP]; /* descend through visible boxes setting more specific values for: * box - deepest box at point * html_object_box - html object * html_object_pos_x - html object * html_object_pos_y - html object * object - non html object * iframe - iframe * url - href or imagemap * target - href or imagemap or gadget * url_box - href or imagemap * imagemap - imagemap * gadget - gadget * gadget_box - gadget * gadget_box_x - gadget * gadget_box_y - gadget * title - title * pointer * * drag_candidate - first box with scroll * padding_left - box with scroll * padding_right * padding_top * padding_bottom * scrollbar - inside padding box stops decent * scroll_mouse_x - inside padding box stops decent * scroll_mouse_y - inside padding box stops decent * * text_box - text box * text_box_x - text_box */ while ((next_box = box_at_point(box, x, y, &box_x, &box_y)) != NULL) { box = next_box; if ((box->style != NULL) && (css_computed_visibility(box->style) == CSS_VISIBILITY_HIDDEN)) { continue; } if (box->node != NULL) { node = box->node; } if (box->object) { if (content_get_type(box->object) == CONTENT_HTML) { html_object_box = box; html_object_pos_x = box_x; html_object_pos_y = box_y; } else { object = box->object; } } if (box->iframe) { iframe = box->iframe; } if (box->href) { url = box->href; target = box->target; url_box = box; } if (box->usemap) { url = imagemap_get(html, box->usemap, box_x, box_y, x, y, &target); if (url) { imagemap = true; url_box = box; } } if (box->gadget) { gadget = box->gadget; gadget_box = box; gadget_box_x = box_x; gadget_box_y = box_y; if (gadget->form) target = gadget->form->target; } if (box->title) { title = box->title; } pointer = get_pointer_shape(box, false); if ((box->scroll_x != NULL) || (box->scroll_y != NULL)) { if (drag_candidate == NULL) { drag_candidate = box; } padding_left = box_x + scrollbar_get_offset(box->scroll_x); padding_right = padding_left + box->padding[LEFT] + box->width + box->padding[RIGHT]; padding_top = box_y + scrollbar_get_offset(box->scroll_y); padding_bottom = padding_top + box->padding[TOP] + box->height + box->padding[BOTTOM]; if ((x > padding_left) && (x < padding_right) && (y > padding_top) && (y < padding_bottom)) { /* mouse inside padding box */ if ((box->scroll_y != NULL) && (x > (padding_right - SCROLLBAR_WIDTH))) { /* mouse above vertical box scroll */ scrollbar = box->scroll_y; scroll_mouse_x = x - (padding_right - SCROLLBAR_WIDTH); scroll_mouse_y = y - padding_top; break; } else if ((box->scroll_x != NULL) && (y > (padding_bottom - SCROLLBAR_WIDTH))) { /* mouse above horizontal box scroll */ scrollbar = box->scroll_x; scroll_mouse_x = x - padding_left; scroll_mouse_y = y - (padding_bottom - SCROLLBAR_WIDTH); break; } } } if (box->text && !box->object) { text_box = box; text_box_x = box_x; } } /* use of box_x, box_y, or content below this point is probably a * mistake; they will refer to the last box returned by box_at_point */ if (scrollbar) { status = scrollbar_mouse_action(scrollbar, mouse, scroll_mouse_x, scroll_mouse_y); pointer = BROWSER_POINTER_DEFAULT; } else if (gadget) { switch (gadget->type) { case GADGET_SELECT: status = messages_get("FormSelect"); pointer = BROWSER_POINTER_MENU; if (mouse & BROWSER_MOUSE_CLICK_1 && nsoption_bool(core_select_menu)) { html->visible_select_menu = gadget; form_open_select_menu(c, gadget, form_select_menu_callback, c); pointer = BROWSER_POINTER_DEFAULT; } else if (mouse & BROWSER_MOUSE_CLICK_1) gui_create_form_select_menu(bw, gadget); break; case GADGET_CHECKBOX: status = messages_get("FormCheckbox"); if (mouse & BROWSER_MOUSE_CLICK_1) { gadget->selected = !gadget->selected; html__redraw_a_box(html, gadget_box); } break; case GADGET_RADIO: status = messages_get("FormRadio"); if (mouse & BROWSER_MOUSE_CLICK_1) form_radio_set(html, gadget); break; case GADGET_IMAGE: if (mouse & BROWSER_MOUSE_CLICK_1) { gadget->data.image.mx = x - gadget_box_x; gadget->data.image.my = y - gadget_box_y; } /* drop through */ case GADGET_SUBMIT: if (gadget->form) { snprintf(status_buffer, sizeof status_buffer, messages_get("FormSubmit"), gadget->form->action); status = status_buffer; pointer = get_pointer_shape(gadget_box, false); if (mouse & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2)) action = ACTION_SUBMIT; } else { status = messages_get("FormBadSubmit"); } break; case GADGET_TEXTAREA: status = messages_get("FormTextarea"); pointer = get_pointer_shape(gadget_box, false); if (mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2)) { if (text_box && selection_root(&html->sel) != gadget_box) selection_init(&html->sel, gadget_box); textinput_textarea_click(c, mouse, gadget_box, gadget_box_x, gadget_box_y, x - gadget_box_x, y - gadget_box_y); } if (text_box) { int pixel_offset; size_t idx; font_plot_style_from_css(text_box->style, &fstyle); nsfont.font_position_in_string(&fstyle, text_box->text, text_box->length, x - gadget_box_x - text_box->x, &idx, &pixel_offset); selection_click(&html->sel, mouse, text_box->byte_offset + idx); if (selection_dragging(&html->sel)) { browser_window_set_drag_type(bw, DRAGGING_SELECTION, NULL); status = messages_get("Selecting"); } } else if (mouse & BROWSER_MOUSE_PRESS_1) selection_clear(&html->sel, true); break; case GADGET_TEXTBOX: case GADGET_PASSWORD: status = messages_get("FormTextbox"); pointer = get_pointer_shape(gadget_box, false); if ((mouse & BROWSER_MOUSE_PRESS_1) && !(mouse & (BROWSER_MOUSE_MOD_1 | BROWSER_MOUSE_MOD_2))) { textinput_input_click(c, gadget_box, gadget_box_x, gadget_box_y, x - gadget_box_x, y - gadget_box_y); } if (text_box) { int pixel_offset; size_t idx; if (mouse & (BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2)) selection_init(&html->sel, gadget_box); font_plot_style_from_css(text_box->style, &fstyle); nsfont.font_position_in_string(&fstyle, text_box->text, text_box->length, x - gadget_box_x - text_box->x, &idx, &pixel_offset); selection_click(&html->sel, mouse, text_box->byte_offset + idx); if (selection_dragging(&html->sel)) browser_window_set_drag_type(bw, DRAGGING_SELECTION, NULL); } else if (mouse & BROWSER_MOUSE_PRESS_1) selection_clear(&html->sel, true); break; case GADGET_HIDDEN: /* not possible: no box generated */ break; case GADGET_RESET: status = messages_get("FormReset"); break; case GADGET_FILE: status = messages_get("FormFile"); break; case GADGET_BUTTON: /* This gadget cannot be activated */ status = messages_get("FormButton"); break; } } else if (object && (mouse & BROWSER_MOUSE_MOD_2)) { if (mouse & BROWSER_MOUSE_DRAG_2) { msg_data.dragsave.type = CONTENT_SAVE_NATIVE; msg_data.dragsave.content = object; content_broadcast(c, CONTENT_MSG_DRAGSAVE, msg_data); } else if (mouse & BROWSER_MOUSE_DRAG_1) { msg_data.dragsave.type = CONTENT_SAVE_ORIG; msg_data.dragsave.content = object; content_broadcast(c, CONTENT_MSG_DRAGSAVE, msg_data); } /* \todo should have a drag-saving object msg */ } else if (iframe) { int pos_x, pos_y; float scale = browser_window_get_scale(bw); browser_window_get_position(iframe, false, &pos_x, &pos_y); pos_x /= scale; pos_y /= scale; if (mouse & BROWSER_MOUSE_CLICK_1 || mouse & BROWSER_MOUSE_CLICK_2) { browser_window_mouse_click(iframe, mouse, x - pos_x, y - pos_y); } else { browser_window_mouse_track(iframe, mouse, x - pos_x, y - pos_y); } } else if (html_object_box) { if (mouse & BROWSER_MOUSE_CLICK_1 || mouse & BROWSER_MOUSE_CLICK_2) { content_mouse_action(html_object_box->object, bw, mouse, x - html_object_pos_x, y - html_object_pos_y); } else { content_mouse_track(html_object_box->object, bw, mouse, x - html_object_pos_x, y - html_object_pos_y); } } else if (url) { if (title) { snprintf(status_buffer, sizeof status_buffer, "%s: %s", nsurl_access(url), title); status = status_buffer; } else status = nsurl_access(url); pointer = get_pointer_shape(url_box, imagemap); if (mouse & BROWSER_MOUSE_CLICK_1 && mouse & BROWSER_MOUSE_MOD_1) { /* force download of link */ browser_window_go_post(bw, nsurl_access(url), 0, 0, false, nsurl_access(content_get_url(c)), true, true, 0); } else if (mouse & BROWSER_MOUSE_CLICK_2 && mouse & BROWSER_MOUSE_MOD_1) { msg_data.savelink.url = nsurl_access(url); msg_data.savelink.title = title; content_broadcast(c, CONTENT_MSG_SAVELINK, msg_data); } else if (mouse & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2)) action = ACTION_GO; } else { bool done = false; /* frame resizing */ if (browser_window_frame_resize_start(bw, mouse, x, y, &pointer)) { if (mouse & (BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2)) { status = messages_get("FrameDrag"); } done = true; } /* if clicking in the main page, remove the selection from any * text areas */ if (!done) { struct box *layout = html->layout; if (mouse && (mouse < BROWSER_MOUSE_MOD_1) && selection_root(&html->sel) != layout) { selection_init(&html->sel, layout); } if (text_box) { int pixel_offset; size_t idx; font_plot_style_from_css(text_box->style, &fstyle); nsfont.font_position_in_string(&fstyle, text_box->text, text_box->length, x - text_box_x, &idx, &pixel_offset); if (selection_click(&html->sel, mouse, text_box->byte_offset + idx)) { /* key presses must be directed at the * main browser window, paste text * operations ignored */ if (selection_dragging(&html->sel)) { browser_window_set_drag_type(bw, DRAGGING_SELECTION, NULL); status = messages_get( "Selecting"); } done = true; } } else if (mouse & BROWSER_MOUSE_PRESS_1) selection_clear(&html->sel, true); } if (!done) { if (title) status = title; if (mouse & BROWSER_MOUSE_DRAG_1) { if (mouse & BROWSER_MOUSE_MOD_2) { msg_data.dragsave.type = CONTENT_SAVE_COMPLETE; msg_data.dragsave.content = NULL; content_broadcast(c, CONTENT_MSG_DRAGSAVE, msg_data); } else { if (drag_candidate == NULL) { browser_window_page_drag_start( bw, x, y); } else { html_box_drag_start( drag_candidate, x, y); } pointer = BROWSER_POINTER_MOVE; } } else if (mouse & BROWSER_MOUSE_DRAG_2) { if (mouse & BROWSER_MOUSE_MOD_2) { msg_data.dragsave.type = CONTENT_SAVE_SOURCE; msg_data.dragsave.content = NULL; content_broadcast(c, CONTENT_MSG_DRAGSAVE, msg_data); } else { if (drag_candidate == NULL) { browser_window_page_drag_start( bw, x, y); } else { html_box_drag_start( drag_candidate, x, y); } pointer = BROWSER_POINTER_MOVE; } } } if (mouse && mouse < BROWSER_MOUSE_MOD_1) { /* ensure key presses still act on the browser window */ browser_window_remove_caret(bw); } } if (!iframe && !html_object_box) { msg_data.explicit_status_text = status; content_broadcast(c, CONTENT_MSG_STATUS, msg_data); msg_data.pointer = pointer; content_broadcast(c, CONTENT_MSG_POINTER, msg_data); } /* fire dom click event */ if ((mouse & BROWSER_MOUSE_CLICK_1) || (mouse & BROWSER_MOUSE_CLICK_2)) { js_fire_event(html->jscontext, "click", html->document, node); } /* deferred actions that can cause this browser_window to be destroyed * and must therefore be done after set_status/pointer */ switch (action) { case ACTION_SUBMIT: form_submit(content_get_url(c), browser_window_find_target(bw, target, mouse), gadget->form, gadget); break; case ACTION_GO: browser_window_go(browser_window_find_target(bw, target, mouse), nsurl_access(url), nsurl_access(content_get_url(c)), true); break; case ACTION_NONE: break; } }
/** * Callback for (i)frame scrollbars. */ void browser_window_scroll_callback(void *client_data, struct scrollbar_msg_data *scrollbar_data) { struct browser_window *bw = client_data; switch(scrollbar_data->msg) { case SCROLLBAR_MSG_MOVED: if (bw->browser_window_type == BROWSER_WINDOW_IFRAME) { html_redraw_a_box(bw->parent->current_content, bw->box); } else { struct rect rect; rect.x0 = scrollbar_get_offset(bw->scroll_x); rect.y0 = scrollbar_get_offset(bw->scroll_y); rect.x1 = rect.x0 + bw->width; rect.y1 = rect.y0 + bw->height; browser_window_update_box(bw, &rect); } break; case SCROLLBAR_MSG_SCROLL_START: { struct rect rect = { .x0 = scrollbar_data->x0, .y0 = scrollbar_data->y0, .x1 = scrollbar_data->x1, .y1 = scrollbar_data->y1 }; if (scrollbar_is_horizontal(scrollbar_data->scrollbar)) browser_window_set_drag_type(bw, DRAGGING_SCR_X, &rect); else browser_window_set_drag_type(bw, DRAGGING_SCR_Y, &rect); } break; case SCROLLBAR_MSG_SCROLL_FINISHED: browser_window_set_drag_type(bw, DRAGGING_NONE, NULL); browser_window_set_pointer(bw, BROWSER_POINTER_DEFAULT); break; } } /* exported interface, documented in browser.h */ void browser_window_handle_scrollbars(struct browser_window *bw) { struct hlcache_handle *h = bw->current_content; bool scroll_x; bool scroll_y; int c_width = 0; int c_height = 0; assert(!bw->window); /* Core-handled windows only */ if (h != NULL) { c_width = content_get_width(h); c_height = content_get_height(h); } if (bw->scrolling == BW_SCROLLING_YES) { scroll_x = true; scroll_y = true; } else if (bw->scrolling == BW_SCROLLING_AUTO && bw->current_content) { int bw_width = bw->width; int bw_height = bw->height; /* subtract existing scrollbar width */ bw_width -= bw->scroll_y ? SCROLLBAR_WIDTH : 0; bw_height -= bw->scroll_x ? SCROLLBAR_WIDTH : 0; scroll_y = (c_height > bw_height) ? true : false; scroll_x = (c_width > bw_width) ? true : false; } else { /* No scrollbars */ scroll_x = false; scroll_y = false; } if (!scroll_x && bw->scroll_x != NULL) { scrollbar_destroy(bw->scroll_x); bw->scroll_x = NULL; } if (!scroll_y && bw->scroll_y != NULL) { scrollbar_destroy(bw->scroll_y); bw->scroll_y = NULL; } if (scroll_y) { int length = bw->height; int visible = bw->height - (scroll_x ? SCROLLBAR_WIDTH : 0); if (bw->scroll_y == NULL) { /* create vertical scrollbar */ if (scrollbar_create(false, length, c_height, visible, bw, browser_window_scroll_callback, &(bw->scroll_y)) != NSERROR_OK) { return; } } else { /* update vertical scrollbar */ scrollbar_set_extents(bw->scroll_y, length, visible, c_height); } } if (scroll_x) { int length = bw->width - (scroll_y ? SCROLLBAR_WIDTH : 0); int visible = length; if (bw->scroll_x == NULL) { /* create horizontal scrollbar */ if (scrollbar_create(true, length, c_width, visible, bw, browser_window_scroll_callback, &(bw->scroll_x)) != NSERROR_OK) { return; } } else { /* update horizontal scrollbar */ scrollbar_set_extents(bw->scroll_x, length, visible, c_width); } } if (scroll_x && scroll_y) scrollbar_make_pair(bw->scroll_x, bw->scroll_y); } /* exported function documented in desktop/frames.h */ nserror browser_window_create_iframes(struct browser_window *bw, struct content_html_iframe *iframe) { struct browser_window *window; struct content_html_iframe *cur; struct rect rect; int iframes = 0; int index; nserror ret = NSERROR_OK; if (iframe == NULL) { return NSERROR_BAD_PARAMETER; } /* Count iframe list and allocate enough space within the * browser window. */ for (cur = iframe; cur; cur = cur->next) { iframes++; } bw->iframes = calloc(iframes, sizeof(*bw)); if (!bw->iframes) { return NSERROR_NOMEM; } bw->iframe_count = iframes; index = 0; for (cur = iframe; cur; cur = cur->next) { window = &(bw->iframes[index++]); /* Initialise common parts */ browser_window_initialise_common(BW_CREATE_NONE, window, NULL); /* window characteristics */ window->browser_window_type = BROWSER_WINDOW_IFRAME; window->scrolling = cur->scrolling; window->border = cur->border; window->border_colour = cur->border_colour; window->no_resize = true; window->margin_width = cur->margin_width; window->margin_height = cur->margin_height; window->scale = bw->scale; if (cur->name != NULL) { window->name = strdup(cur->name); if (window->name == NULL) { free(bw->iframes) ; bw->iframes = 0; bw->iframe_count = 0; return NSERROR_NOMEM; } } /* linking */ window->box = cur->box; window->parent = bw; window->box->iframe = window; /* iframe dimensions */ box_bounds(window->box, &rect); browser_window_set_position(window, rect.x0, rect.y0); browser_window_set_dimensions(window, rect.x1 - rect.x0, rect.y1 - rect.y0); } /* calculate dimensions */ browser_window_update_extent(bw); browser_window_recalculate_iframes(bw); index = 0; for (cur = iframe; cur; cur = cur->next) { window = &(bw->iframes[index++]); if (cur->url) { /* fetch iframe's content */ ret = browser_window_navigate(window, cur->url, hlcache_handle_get_url(bw->current_content), BW_NAVIGATE_UNVERIFIABLE, NULL, NULL, bw->current_content); } } return ret; } /** * Recalculate iframe positions following a resize. * * \param bw The browser window to reposition iframes for */ void browser_window_recalculate_iframes(struct browser_window *bw) { struct browser_window *window; int index; for (index = 0; index < bw->iframe_count; index++) { window = &(bw->iframes[index]); if (window != NULL) { browser_window_handle_scrollbars(window); } } } /* exported interface documented in desktop/frames.h */ nserror browser_window_create_frameset(struct browser_window *bw, struct content_html_frames *frameset) { int row, col, index; struct content_html_frames *frame; struct browser_window *window; hlcache_handle *parent; assert(bw && frameset); /* 1. Create children */ assert(bw->children == NULL); assert(frameset->cols + frameset->rows != 0); bw->children = calloc((frameset->cols * frameset->rows), sizeof(*bw)); if (!bw->children) { return NSERROR_NOMEM; } bw->cols = frameset->cols; bw->rows = frameset->rows; for (row = 0; row < bw->rows; row++) { for (col = 0; col < bw->cols; col++) { index = (row * bw->cols) + col; frame = &frameset->children[index]; window = &bw->children[index]; /* Initialise common parts */ browser_window_initialise_common(BW_CREATE_NONE, window, NULL); /* window characteristics */ if (frame->children) window->browser_window_type = BROWSER_WINDOW_FRAMESET; else window->browser_window_type = BROWSER_WINDOW_FRAME; window->scrolling = frame->scrolling; window->border = frame->border; window->border_colour = frame->border_colour; window->no_resize = frame->no_resize; window->frame_width = frame->width; window->frame_height = frame->height; window->margin_width = frame->margin_width; window->margin_height = frame->margin_height; if (frame->name) { window->name = strdup(frame->name); if (!window->name) { free(bw->children); bw->children = NULL; return NSERROR_NOMEM; } } window->scale = bw->scale; /* linking */ window->parent = bw; if (window->name) LOG("Created frame '%s'", window->name); else LOG("Created frame (unnamed)"); } } /* 2. Calculate dimensions */ browser_window_update_extent(bw); browser_window_recalculate_frameset(bw); /* 3. Recurse for grandchildren */ for (row = 0; row < bw->rows; row++) { for (col = 0; col < bw->cols; col++) { index = (row * bw->cols) + col; frame = &frameset->children[index]; window = &bw->children[index]; if (frame->children) browser_window_create_frameset(window, frame); } } /* Use the URL of the first ancestor window containing html content * as the referer */ for (window = bw; window->parent; window = window->parent) { if (window->current_content && content_get_type(window->current_content) == CONTENT_HTML) break; } parent = window->current_content; /* 4. Launch content */ for (row = 0; row < bw->rows; row++) { for (col = 0; col < bw->cols; col++) { index = (row * bw->cols) + col; frame = &frameset->children[index]; window = &bw->children[index]; if (frame->url) { browser_window_navigate(window, frame->url, hlcache_handle_get_url(parent), BW_NAVIGATE_HISTORY | BW_NAVIGATE_UNVERIFIABLE, NULL, NULL, parent); } } } return NSERROR_OK; }
/** * Callback for (i)frame scrollbars. */ void browser_window_scroll_callback(void *client_data, struct scrollbar_msg_data *scrollbar_data) { struct browser_window *bw = client_data; switch(scrollbar_data->msg) { case SCROLLBAR_MSG_MOVED: if (bw->browser_window_type == BROWSER_WINDOW_IFRAME) { html_redraw_a_box(bw->parent->current_content, bw->box); } else { struct rect rect; rect.x0 = scrollbar_get_offset(bw->scroll_x); rect.y0 = scrollbar_get_offset(bw->scroll_y); rect.x1 = rect.x0 + bw->width; rect.y1 = rect.y0 + bw->height; browser_window_update_box(bw, &rect); } break; case SCROLLBAR_MSG_SCROLL_START: { struct rect rect = { .x0 = scrollbar_data->x0, .y0 = scrollbar_data->y0, .x1 = scrollbar_data->x1, .y1 = scrollbar_data->y1 }; if (scrollbar_is_horizontal(scrollbar_data->scrollbar)) browser_window_set_drag_type(bw, DRAGGING_SCR_X, &rect); else browser_window_set_drag_type(bw, DRAGGING_SCR_Y, &rect); } break; case SCROLLBAR_MSG_SCROLL_FINISHED: browser_window_set_drag_type(bw, DRAGGING_NONE, NULL); browser_window_set_pointer(bw, BROWSER_POINTER_DEFAULT); break; } } /* exported interface, documented in browser.h */ void browser_window_handle_scrollbars(struct browser_window *bw) { hlcache_handle *h = bw->current_content; bool scroll_x; bool scroll_y; int c_width = 0; int c_height = 0; assert(!bw->window); /* Core-handled windows only */ if (h != NULL) { c_width = content_get_width(h); c_height = content_get_height(h); } if (bw->scrolling == SCROLLING_YES) { scroll_x = true; scroll_y = true; } else if (bw->scrolling == SCROLLING_AUTO && bw->current_content) { int bw_width = bw->width; int bw_height = bw->height; /* subtract existing scrollbar width */ bw_width -= bw->scroll_y ? SCROLLBAR_WIDTH : 0; bw_height -= bw->scroll_x ? SCROLLBAR_WIDTH : 0; scroll_y = (c_height > bw_height) ? true : false; scroll_x = (c_width > bw_width) ? true : false; } else { /* No scrollbars */ scroll_x = false; scroll_y = false; } if (!scroll_x && bw->scroll_x != NULL) { scrollbar_destroy(bw->scroll_x); bw->scroll_x = NULL; } if (!scroll_y && bw->scroll_y != NULL) { scrollbar_destroy(bw->scroll_y); bw->scroll_y = NULL; } if (scroll_y) { int length = bw->height; int visible = bw->height - (scroll_x ? SCROLLBAR_WIDTH : 0); if (bw->scroll_y == NULL) { /* create vertical scrollbar */ if (!scrollbar_create(false, length, c_height, visible, bw, browser_window_scroll_callback, &(bw->scroll_y))) return; } else { /* update vertical scrollbar */ scrollbar_set_extents(bw->scroll_y, length, visible, c_height); } } if (scroll_x) { int length = bw->width - (scroll_y ? SCROLLBAR_WIDTH : 0); int visible = length; if (bw->scroll_x == NULL) { /* create horizontal scrollbar */ if (!scrollbar_create(true, length, c_width, visible, bw, browser_window_scroll_callback, &(bw->scroll_x))) return; } else { /* update horizontal scrollbar */ scrollbar_set_extents(bw->scroll_x, length, visible, c_width); } } if (scroll_x && scroll_y) scrollbar_make_pair(bw->scroll_x, bw->scroll_y); }
void html_mouse_action(struct content *c, struct browser_window *bw, browser_mouse_state mouse, int x, int y) { html_content *html = (html_content *) c; enum { ACTION_NONE, ACTION_SUBMIT, ACTION_GO } action = ACTION_NONE; const char *title = 0; nsurl *url = 0; const char *target = 0; char status_buffer[200]; const char *status = 0; browser_pointer_shape pointer = BROWSER_POINTER_DEFAULT; bool imagemap = false; int box_x = 0, box_y = 0; int gadget_box_x = 0, gadget_box_y = 0; int html_object_pos_x = 0, html_object_pos_y = 0; int text_box_x = 0; struct box *url_box = 0; struct box *gadget_box = 0; struct box *text_box = 0; struct box *box; struct form_control *gadget = 0; hlcache_handle *object = NULL; struct box *html_object_box = NULL; struct browser_window *iframe = NULL; struct box *next_box; struct box *drag_candidate = NULL; struct scrollbar *scrollbar = NULL; plot_font_style_t fstyle; int scroll_mouse_x = 0, scroll_mouse_y = 0; int padding_left, padding_right, padding_top, padding_bottom; browser_drag_type drag_type = browser_window_get_drag_type(bw); union content_msg_data msg_data; struct dom_node *node = NULL; union html_drag_owner drag_owner; union html_selection_owner sel_owner; bool click = mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2 | BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2 | BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2); if (drag_type != DRAGGING_NONE && !mouse && html->visible_select_menu != NULL) { /* drag end: select menu */ form_select_mouse_drag_end(html->visible_select_menu, mouse, x, y); } if (html->visible_select_menu != NULL) { box = html->visible_select_menu->box; box_coords(box, &box_x, &box_y); box_x -= box->border[LEFT].width; box_y += box->height + box->border[BOTTOM].width + box->padding[BOTTOM] + box->padding[TOP]; status = form_select_mouse_action(html->visible_select_menu, mouse, x - box_x, y - box_y); if (status != NULL) { msg_data.explicit_status_text = status; content_broadcast(c, CONTENT_MSG_STATUS, msg_data); } else { int width, height; form_select_get_dimensions(html->visible_select_menu, &width, &height); html->visible_select_menu = NULL; browser_window_redraw_rect(bw, box_x, box_y, width, height); } return; } if (html->drag_type == HTML_DRAG_SELECTION) { /* Selection drag */ struct box *box; int dir = -1; int dx, dy; if (!mouse) { /* End of selection drag */ int dir = -1; size_t idx; if (selection_dragging_start(&html->sel)) dir = 1; idx = html_selection_drag_end(html, mouse, x, y, dir); if (idx != 0) selection_track(&html->sel, mouse, idx); drag_owner.no_owner = true; html_set_drag_type(html, HTML_DRAG_NONE, drag_owner, NULL); return; } if (selection_dragging_start(&html->sel)) dir = 1; box = box_pick_text_box(html, x, y, dir, &dx, &dy); if (box != NULL) { int pixel_offset; size_t idx; plot_font_style_t fstyle; font_plot_style_from_css(box->style, &fstyle); nsfont.font_position_in_string(&fstyle, box->text, box->length, dx, &idx, &pixel_offset); selection_track(&html->sel, mouse, box->byte_offset + idx); } return; } if (html->drag_type == HTML_DRAG_SCROLLBAR) { struct scrollbar *scr = html->drag_owner.scrollbar; struct html_scrollbar_data *data = scrollbar_get_data(scr); if (!mouse) { /* drag end: scrollbar */ html_overflow_scroll_drag_end(scr, mouse, x, y); } box = data->box; box_coords(box, &box_x, &box_y); if (scrollbar_is_horizontal(scr)) { scroll_mouse_x = x - box_x ; scroll_mouse_y = y - (box_y + box->padding[TOP] + box->height + box->padding[BOTTOM] - SCROLLBAR_WIDTH); status = scrollbar_mouse_status_to_message( scrollbar_mouse_action(scr, mouse, scroll_mouse_x, scroll_mouse_y)); } else { scroll_mouse_x = x - (box_x + box->padding[LEFT] + box->width + box->padding[RIGHT] - SCROLLBAR_WIDTH); scroll_mouse_y = y - box_y; status = scrollbar_mouse_status_to_message( scrollbar_mouse_action(scr, mouse, scroll_mouse_x, scroll_mouse_y)); } msg_data.explicit_status_text = status; content_broadcast(c, CONTENT_MSG_STATUS, msg_data); return; } if (html->drag_type == HTML_DRAG_TEXTAREA_SELECTION || html->drag_type == HTML_DRAG_TEXTAREA_SCROLLBAR) { box = html->drag_owner.textarea; assert(box->gadget != NULL); assert(box->gadget->type == GADGET_TEXTAREA || box->gadget->type == GADGET_PASSWORD || box->gadget->type == GADGET_TEXTBOX); box_coords(box, &box_x, &box_y); textarea_mouse_action(box->gadget->data.text.ta, mouse, x - box_x, y - box_y); /* TODO: Set appropriate statusbar message */ return; } if (html->drag_type == HTML_DRAG_CONTENT_SELECTION || html->drag_type == HTML_DRAG_CONTENT_SCROLL) { box = html->drag_owner.content; assert(box->object != NULL); box_coords(box, &box_x, &box_y); content_mouse_track(box->object, bw, mouse, x - box_x, y - box_y); return; } if (html->drag_type == HTML_DRAG_CONTENT_SELECTION) { box = html->drag_owner.content; assert(box->object != NULL); box_coords(box, &box_x, &box_y); content_mouse_track(box->object, bw, mouse, x - box_x, y - box_y); return; } /* Content related drags handled by now */ assert(html->drag_type == HTML_DRAG_NONE); /* search the box tree for a link, imagemap, form control, or * box with scrollbars */ box = html->layout; /* Consider the margins of the html page now */ box_x = box->margin[LEFT]; box_y = box->margin[TOP]; /* descend through visible boxes setting more specific values for: * box - deepest box at point * html_object_box - html object * html_object_pos_x - html object * html_object_pos_y - html object * object - non html object * iframe - iframe * url - href or imagemap * target - href or imagemap or gadget * url_box - href or imagemap * imagemap - imagemap * gadget - gadget * gadget_box - gadget * gadget_box_x - gadget * gadget_box_y - gadget * title - title * pointer * * drag_candidate - first box with scroll * padding_left - box with scroll * padding_right * padding_top * padding_bottom * scrollbar - inside padding box stops decent * scroll_mouse_x - inside padding box stops decent * scroll_mouse_y - inside padding box stops decent * * text_box - text box * text_box_x - text_box */ while ((next_box = box_at_point(box, x, y, &box_x, &box_y)) != NULL) { box = next_box; if ((box->style != NULL) && (css_computed_visibility(box->style) == CSS_VISIBILITY_HIDDEN)) { continue; } if (box->node != NULL) { node = box->node; } if (box->object) { if (content_get_type(box->object) == CONTENT_HTML) { html_object_box = box; html_object_pos_x = box_x; html_object_pos_y = box_y; } else { object = box->object; } } if (box->iframe) { iframe = box->iframe; } if (box->href) { url = box->href; target = box->target; url_box = box; } if (box->usemap) { url = imagemap_get(html, box->usemap, box_x, box_y, x, y, &target); if (url) { imagemap = true; url_box = box; } } if (box->gadget) { gadget = box->gadget; gadget_box = box; gadget_box_x = box_x; gadget_box_y = box_y; if (gadget->form) target = gadget->form->target; } if (box->title) { title = box->title; } pointer = get_pointer_shape(box, false); if ((box->scroll_x != NULL) || (box->scroll_y != NULL)) { if (drag_candidate == NULL) { drag_candidate = box; } padding_left = box_x + scrollbar_get_offset(box->scroll_x); padding_right = padding_left + box->padding[LEFT] + box->width + box->padding[RIGHT]; padding_top = box_y + scrollbar_get_offset(box->scroll_y); padding_bottom = padding_top + box->padding[TOP] + box->height + box->padding[BOTTOM]; if ((x > padding_left) && (x < padding_right) && (y > padding_top) && (y < padding_bottom)) { /* mouse inside padding box */ if ((box->scroll_y != NULL) && (x > (padding_right - SCROLLBAR_WIDTH))) { /* mouse above vertical box scroll */ scrollbar = box->scroll_y; scroll_mouse_x = x - (padding_right - SCROLLBAR_WIDTH); scroll_mouse_y = y - padding_top; break; } else if ((box->scroll_x != NULL) && (y > (padding_bottom - SCROLLBAR_WIDTH))) { /* mouse above horizontal box scroll */ scrollbar = box->scroll_x; scroll_mouse_x = x - padding_left; scroll_mouse_y = y - (padding_bottom - SCROLLBAR_WIDTH); break; } } } if (box->text && !box->object) { text_box = box; text_box_x = box_x; } } /* use of box_x, box_y, or content below this point is probably a * mistake; they will refer to the last box returned by box_at_point */ if (scrollbar) { status = scrollbar_mouse_status_to_message( scrollbar_mouse_action(scrollbar, mouse, scroll_mouse_x, scroll_mouse_y)); pointer = BROWSER_POINTER_DEFAULT; } else if (gadget) { textarea_mouse_status ta_status; switch (gadget->type) { case GADGET_SELECT: status = messages_get("FormSelect"); pointer = BROWSER_POINTER_MENU; if (mouse & BROWSER_MOUSE_CLICK_1 && nsoption_bool(core_select_menu)) { html->visible_select_menu = gadget; form_open_select_menu(c, gadget, form_select_menu_callback, c); pointer = BROWSER_POINTER_DEFAULT; } else if (mouse & BROWSER_MOUSE_CLICK_1) gui_create_form_select_menu(bw, gadget); break; case GADGET_CHECKBOX: status = messages_get("FormCheckbox"); if (mouse & BROWSER_MOUSE_CLICK_1) { gadget->selected = !gadget->selected; html__redraw_a_box(html, gadget_box); } break; case GADGET_RADIO: status = messages_get("FormRadio"); if (mouse & BROWSER_MOUSE_CLICK_1) form_radio_set(html, gadget); break; case GADGET_IMAGE: if (mouse & BROWSER_MOUSE_CLICK_1) { gadget->data.image.mx = x - gadget_box_x; gadget->data.image.my = y - gadget_box_y; } /* drop through */ case GADGET_SUBMIT: if (gadget->form) { snprintf(status_buffer, sizeof status_buffer, messages_get("FormSubmit"), gadget->form->action); status = status_buffer; pointer = get_pointer_shape(gadget_box, false); if (mouse & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2)) action = ACTION_SUBMIT; } else { status = messages_get("FormBadSubmit"); } break; case GADGET_TEXTBOX: case GADGET_PASSWORD: case GADGET_TEXTAREA: if (gadget->type == GADGET_TEXTAREA) status = messages_get("FormTextarea"); else status = messages_get("FormTextbox"); if (click && (html->selection_type != HTML_SELECTION_TEXTAREA || html->selection_owner.textarea != gadget_box)) { sel_owner.none = true; html_set_selection(html, HTML_SELECTION_NONE, sel_owner, true); } ta_status = textarea_mouse_action(gadget->data.text.ta, mouse, x - gadget_box_x, y - gadget_box_y); if (ta_status & TEXTAREA_MOUSE_EDITOR) { pointer = get_pointer_shape(gadget_box, false); } else { pointer = BROWSER_POINTER_DEFAULT; status = scrollbar_mouse_status_to_message( ta_status >> 3); } break; case GADGET_HIDDEN: /* not possible: no box generated */ break; case GADGET_RESET: status = messages_get("FormReset"); break; case GADGET_FILE: status = messages_get("FormFile"); break; case GADGET_BUTTON: /* This gadget cannot be activated */ status = messages_get("FormButton"); break; } } else if (object && (mouse & BROWSER_MOUSE_MOD_2)) {