nsresult
nsTextAttrsMgr::GetAttributes(nsIPersistentProperties *aAttributes,
PRInt32 *aStartHTOffset,
PRInt32 *aEndHTOffset)
{
// 1. Hyper text accessible must be specified always.
// 2. Offset accessible and result hyper text offsets must be specified in
// the case of text attributes.
// 3. Offset accessible and result hyper text offsets must not be specified
// but include default text attributes flag and attributes list must be
// specified in the case of default text attributes.
NS_PRECONDITION(mHyperTextAcc &&
((mOffsetAcc && mOffsetAccIdx != -1 &&
aStartHTOffset && aEndHTOffset) ||
(!mOffsetAcc && mOffsetAccIdx == -1 &&
!aStartHTOffset && !aEndHTOffset &&
mIncludeDefAttrs && aAttributes)),
"Wrong usage of nsTextAttrsMgr!");
// Embedded objects are combined into own range with empty attributes set.
if (mOffsetAcc && nsAccUtils::IsEmbeddedObject(mOffsetAcc)) {
for (PRInt32 childIdx = mOffsetAccIdx - 1; childIdx >= 0; childIdx--) {
nsAccessible *currAcc = mHyperTextAcc->GetChildAt(childIdx);
if (!nsAccUtils::IsEmbeddedObject(currAcc))
break;
(*aStartHTOffset)--;
}
PRInt32 childCount = mHyperTextAcc->GetChildCount();
for (PRInt32 childIdx = mOffsetAccIdx + 1; childIdx < childCount;
childIdx++) {
nsAccessible *currAcc = mHyperTextAcc->GetChildAt(childIdx);
if (!nsAccUtils::IsEmbeddedObject(currAcc))
break;
(*aEndHTOffset)++;
}
return NS_OK;
}
// Get the content and frame of the accessible. In the case of document
// accessible it's role content and root frame.
nsIContent *hyperTextElm = mHyperTextAcc->GetContent();
nsIFrame *rootFrame = mHyperTextAcc->GetFrame();
NS_ASSERTION(rootFrame, "No frame for accessible!");
if (!rootFrame)
return NS_OK;
nsIContent *offsetNode = nsnull, *offsetElm = nsnull;
nsIFrame *frame = nsnull;
if (mOffsetAcc) {
offsetNode = mOffsetAcc->GetContent();
offsetElm = nsCoreUtils::GetDOMElementFor(offsetNode);
frame = offsetElm->GetPrimaryFrame();
}
nsTArray<nsITextAttr*> textAttrArray(10);
// "language" text attribute
nsLangTextAttr langTextAttr(mHyperTextAcc, hyperTextElm, offsetNode);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&langTextAttr));
// "color" text attribute
nsCSSTextAttr colorTextAttr(0, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&colorTextAttr));
// "font-family" text attribute
nsCSSTextAttr fontFamilyTextAttr(1, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontFamilyTextAttr));
// "font-style" text attribute
nsCSSTextAttr fontStyleTextAttr(2, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontStyleTextAttr));
// "text-line-through-style" text attribute
nsCSSTextAttr lineThroughTextAttr(3, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&lineThroughTextAttr));
// "text-underline-style" text attribute
nsCSSTextAttr underlineTextAttr(4, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&underlineTextAttr));
// "text-position" text attribute
nsCSSTextAttr posTextAttr(5, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&posTextAttr));
// "background-color" text attribute
nsBGColorTextAttr bgColorTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&bgColorTextAttr));
// "font-size" text attribute
nsFontSizeTextAttr fontSizeTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontSizeTextAttr));
// "font-weight" text attribute
nsFontWeightTextAttr fontWeightTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontWeightTextAttr));
// Expose text attributes if applicable.
if (aAttributes) {
PRUint32 len = textAttrArray.Length();
for (PRUint32 idx = 0; idx < len; idx++) {
nsITextAttr *textAttr = textAttrArray[idx];
nsAutoString value;
if (textAttr->GetValue(value, mIncludeDefAttrs))
nsAccUtils::SetAccAttr(aAttributes, textAttr->GetName(), value);
}
}
nsresult rv = NS_OK;
// Expose text attributes range where they are applied if applicable.
if (mOffsetAcc)
rv = GetRange(textAttrArray, aStartHTOffset, aEndHTOffset);
textAttrArray.Clear();
return rv;
}
nsresult
nsTextAttrsMgr::GetAttributes(nsIPersistentProperties *aAttributes,
PRInt32 *aStartHTOffset,
PRInt32 *aEndHTOffset)
{
// 1. Hyper text accessible and its DOM node must be specified always.
// 2. Offset DOM node and result hyper text offsets must be specifed in
// the case of text attributes.
// 3. Offset DOM node and result hyper text offsets must not be specifed but
// include default text attributes flag and attributes list must be specified
// in the case of default text attributes.
NS_PRECONDITION(mHyperTextAcc && mHyperTextNode &&
((mOffsetNode && aStartHTOffset && aEndHTOffset) ||
(!mOffsetNode && !aStartHTOffset && !aEndHTOffset &&
mIncludeDefAttrs && aAttributes)),
"Wrong usage of nsTextAttrsMgr!");
nsCOMPtr<nsIDOMElement> hyperTextElm =
nsCoreUtils::GetDOMElementFor(mHyperTextNode);
nsCOMPtr<nsIDOMElement> offsetElm;
if (mOffsetNode)
offsetElm = nsCoreUtils::GetDOMElementFor(mOffsetNode);
nsIFrame *rootFrame = nsCoreUtils::GetFrameFor(hyperTextElm);
nsIFrame *frame = nsnull;
if (offsetElm)
frame = nsCoreUtils::GetFrameFor(offsetElm);
nsTPtrArray<nsITextAttr> textAttrArray(10);
// "language" text attribute
nsLangTextAttr langTextAttr(mHyperTextAcc, mHyperTextNode, mOffsetNode);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&langTextAttr));
// "color" text attribute
nsCSSTextAttr colorTextAttr(0, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&colorTextAttr));
// "font-family" text attribute
nsCSSTextAttr fontFamilyTextAttr(1, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontFamilyTextAttr));
// "font-style" text attribute
nsCSSTextAttr fontStyleTextAttr(2, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontStyleTextAttr));
// "text-line-through-style" text attribute
nsCSSTextAttr lineThroughTextAttr(3, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&lineThroughTextAttr));
// "text-underline-style" text attribute
nsCSSTextAttr underlineTextAttr(4, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&underlineTextAttr));
// "text-position" text attribute
nsCSSTextAttr posTextAttr(5, hyperTextElm, offsetElm);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&posTextAttr));
// "background-color" text attribute
nsBGColorTextAttr bgColorTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&bgColorTextAttr));
// "font-size" text attribute
nsFontSizeTextAttr fontSizeTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontSizeTextAttr));
// "font-weight" text attribute
nsFontWeightTextAttr fontWeightTextAttr(rootFrame, frame);
textAttrArray.AppendElement(static_cast<nsITextAttr*>(&fontWeightTextAttr));
// Expose text attributes if applicable.
if (aAttributes) {
PRUint32 len = textAttrArray.Length();
for (PRUint32 idx = 0; idx < len; idx++) {
nsITextAttr *textAttr = textAttrArray[idx];
nsAutoString value;
if (textAttr->GetValue(value, mIncludeDefAttrs))
nsAccUtils::SetAccAttr(aAttributes, textAttr->GetName(), value);
}
}
nsresult rv = NS_OK;
// Expose text attributes range where they are applied if applicable.
if (mOffsetNode)
rv = GetRange(textAttrArray, aStartHTOffset, aEndHTOffset);
textAttrArray.Clear();
return rv;
}