зеркало из https://github.com/mozilla/gecko-dev.git
183 строки
5.6 KiB
JavaScript
183 строки
5.6 KiB
JavaScript
var editorShell;
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var anchorElement = null;
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var imageElement = null;
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var insertNew = true;
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var needLinkText = false;
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var selection;
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var insertLinkAroundSelection = false;
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// NOTE: Use "href" instead of "a" to distinguish from Named Anchor
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// The returned node is has an "a" tagName
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var tagName = "href";
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var dialog;
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// dialog initialization code
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function Startup()
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{
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dump("Doing Startup...\n");
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// get the editor shell from the parent window
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editorShell = window.opener.editorShell;
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editorShell = editorShell.QueryInterface(Components.interfaces.nsIEditorShell);
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if(!editorShell) {
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dump("editorShell not found!!!\n");
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window.close();
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return;
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}
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// Create dialog object to store controls for easy access
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dialog = new Object;
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dialog.linkTextInput = document.getElementById("linkTextInput");
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dialog.hrefInput = document.getElementById("hrefInput");
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// Kinda clunky: Message was wrapped in a <p>, so actual message is a child text node
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dialog.linkMessage = (document.getElementById("linkMessage")).firstChild;
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if (null == dialog.linkTextInput ||
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null == dialog.hrefInput ||
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null == dialog.linkMessage )
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{
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dump("Not all dialog controls were found!!!\n");
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}
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// Set data for the dialog controls
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initDialog();
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// Set initial focus
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if (insertNew) {
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dump("Setting focus to linkTextInput\n");
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dialog.linkTextInput.focus();
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} else {
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dump("Setting focus to linkTextInput\n");
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dialog.hrefInput.focus();
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// We will not insert a new link at caret, so remove link text input field
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parentNode = dialog.linkTextInput.parentNode;
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if (parentNode) {
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dump("Removing link text input field.\n");
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parentNode.removeChild(dialog.linkTextInput);
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dialog.linkTextInput = null;
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}
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}
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}
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function initDialog()
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{
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// Get a single selected anchor element
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anchorElement = editorShell.GetSelectedElement(tagName);
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selection = editorShell.editorSelection;
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if (selection) {
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dump("There is a selection: collapsed = "+selection.isCollapsed+"\n");
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} else {
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dump("Failed to get selection\n");
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}
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if (anchorElement) {
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dump("found anchor element\n");
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// We found an element and don't need to insert one
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insertNew = false;
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} else {
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// See if we have a selected image instead of text
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imageElement = editorShell.GetSelectedElement("img");
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if (imageElement) {
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// See if the image is a child of a link
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dump("Image element found - check if its a link...\n");
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dump("Image Parent="+parent);
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parent = imageElement.parentNode;
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dump("Parent="+parent+" nodeName="+parent.nodeName+"\n");
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if (parent) {
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anchorElement = parent;
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insertNew = false;
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// Link source string is the source URL of image
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// TODO: THIS STILL DOESN'T HANDLE MULTIPLE SELECTED IMAGES!
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dialog.linkMessage.data = imageElement.getAttribute("src");;
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}
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} else {
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// We don't have an element selected,
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// so create one with default attributes
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dump("Element not selected - calling createElementWithDefaults\n");
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anchorElement = editorShell.CreateElementWithDefaults(tagName);
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// We will insert a new link at caret location if there's no selection
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// TODO: This isn't entirely correct. If selection doesn't have any text
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// or an image, then shouldn't we clear the selection and insert new text?
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insertNew = selection.isCollapsed;
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dump("insertNew is " + insertNew + "\n");
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}
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}
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if(!anchorElement)
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{
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dump("Failed to get selected element or create a new one!\n");
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window.close();
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} else if (!insertNew && !imageElement) {
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// Replace the link message with the link source string
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selectedText = editorShell.selectionAsText;
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if (selectedText.length > 0) {
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// Use just the first 50 characters and add "..."
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selectedText = TruncateStringAtWordEnd(selectedText, 50, true);
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} else {
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dump("Selected text for link source not found. Non-text elements selected?\n");
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}
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dialog.linkMessage.data = selectedText;
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}
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if (!selection.isCollapsed)
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{
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// HREF is a weird case: If selection extends beyond
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// the link, user probably wants to extend link to
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// entire selection.
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// TODO: If there was already a link,
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// we need to know if selection extends beyond existing
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// link text before we should do this
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insertLinkAroundSelection = true;
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dump("insertLinkAroundSelection is TRUE\n");
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}
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}
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function chooseFile()
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{
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// Get a local file, converted into URL format
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fileName = editorShell.GetLocalFileURL(window, "html");
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if (fileName != "") {
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dialog.hrefInput.value = fileName;
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}
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// Put focus into the input field
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dialog.hrefInput.focus();
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}
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function onOK()
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{
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// TODO: VALIDATE FIELDS BEFORE COMMITING CHANGES
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// Coalesce into one undo transaction
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editorShell.BeginBatchChanges();
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// Set the HREF directly on the editor document's anchor node
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// or on the newly-created node if insertNew is true
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anchorElement.setAttribute("href",dialog.hrefInput.value);
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// Get text to use for a new link
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if (insertNew) {
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// Append the link text as the last child node
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// of the anchor node
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dump("Creating text node\n");
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textNode = editorShell.editorDocument.createTextNode(dialog.linkTextInput.value);
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if (textNode) {
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anchorElement.appendChild(textNode);
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}
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dump("Inserting\n");
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editorShell.InsertElement(anchorElement, false);
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} else if (insertLinkAroundSelection) {
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dump("Setting link around selected text\n");
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editorShell.InsertLinkAroundSelection(anchorElement);
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}
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editorShell.EndBatchChanges();
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window.close();
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}
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