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sync the source viewer with the suite

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git-svn-id: svn://10.0.0.236/trunk@148275 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
chanial%noos.fr
2003-10-22 08:02:23 +00:00
parent f036da6b9b
commit f8fea9e83b
6 changed files with 417 additions and 54 deletions
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395
mozilla/toolkit/components/viewsource/content/viewSource.js
View File

@@ -22,9 +22,15 @@
#
const pageLoaderIface = Components.interfaces.nsIWebPageDescriptor;
const nsISelectionPrivate = Components.interfaces.nsISelectionPrivate;
const nsISelectionController = Components.interfaces.nsISelectionController;
var gBrowser = null;
var gViewSourceBundle = null;
var gPrefs = null;
var gLastLineFound = '';
var gGoToLine = 0;
try {
var prefService = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefService);
@@ -32,24 +38,60 @@ try {
} catch (ex) {
}
var gSelectionListener = {
timeout: 0,
notifySelectionChanged: function(doc, sel, reason)
{
// Coalesce notifications within 100ms intervals.
if (!this.timeout)
this.timeout = setTimeout(updateStatusBar, 100);
}
}
function onLoadViewSource()
{
gBrowser = document.getElementById("content");
viewSource(window.arguments[0]);
document.commandDispatcher.focusedWindow = content;
}
function getBrowser()
{
if (!gBrowser)
gBrowser = document.getElementById("content");
return gBrowser;
}
function getSelectionController()
{
return getBrowser().docShell
.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
.getInterface(Components.interfaces.nsISelectionDisplay)
.QueryInterface(nsISelectionController);
}
function getViewSourceBundle()
{
if (!gViewSourceBundle)
gViewSourceBundle = document.getElementById("viewSourceBundle");
return gViewSourceBundle;
}
function viewSource(url)
{
if (!url)
return false; // throw Components.results.NS_ERROR_FAILURE;
getBrowser().addEventListener("unload", onUnloadContent, true);
getBrowser().addEventListener("load", onLoadContent, true);
var loadFromURL = true;
//
// Parse the 'arguments' supplied with the dialog.
// arg[0] - URL string.
// arg[1] - Charset value in the form 'charset=xxx'.
// arg[2] - Page descriptor used to load content from the cache.
// arg[3] - Line number to go to.
//
if ("arguments" in window) {
var arg;
@@ -72,6 +114,13 @@ function viewSource(url)
}
}
//
// Get any specified line to jump to.
//
if (window.arguments.length >= 4) {
arg = window.arguments[3];
gGoToLine = parseInt(arg);
}
//
// Use the page descriptor to load the content from the cache (if
// available).
//
@@ -80,7 +129,7 @@ function viewSource(url)
try {
if (typeof(arg) == "object" && arg != null) {
var PageLoader = gBrowser.webNavigation.QueryInterface(pageLoaderIface);
var PageLoader = getBrowser().webNavigation.QueryInterface(pageLoaderIface);
//
// Load the page using the page descriptor rather than the URL.
@@ -104,7 +153,7 @@ function viewSource(url)
//
var loadFlags = Components.interfaces.nsIWebNavigation.LOAD_FLAGS_NONE;
var viewSrcUrl = "view-source:" + url;
gBrowser.webNavigation.loadURI(viewSrcUrl, loadFlags, null, null, null);
getBrowser().webNavigation.loadURI(viewSrcUrl, loadFlags, null, null, null);
}
//check the view_source.wrap_long_lines pref and set the menuitem's checked attribute accordingly
@@ -125,37 +174,346 @@ function viewSource(url)
}
window._content.focus();
return true;
}
function onLoadContent()
{
//
// If the view source was opened with a "go to line" argument.
//
if (gGoToLine > 0) {
goToLine(gGoToLine);
gGoToLine = 0;
}
document.getElementById('cmd_goToLine').removeAttribute('disabled');
// Register a listener so that we can show the caret position on the status bar.
window._content.getSelection()
.QueryInterface(nsISelectionPrivate)
.addSelectionListener(gSelectionListener);
}
function onUnloadContent()
{
//
// Disable "go to line" while reloading due to e.g. change of charset
// or toggling of syntax highlighting.
//
document.getElementById('cmd_goToLine').setAttribute('disabled', 'true');
}
function ViewSourceClose()
{
window.close();
}
function BrowserReload()
{
// Reload will always reload from cache which is probably not what's wanted
BrowserReloadSkipCache();
}
function BrowserReloadSkipCache()
{
const webNavigation = getBrowser().webNavigation;
webNavigation.reload(webNavigation.LOAD_FLAGS_BYPASS_PROXY | webNavigation.LOAD_FLAGS_BYPASS_CACHE);
}
// Strips the |view-source:| for editPage()
function ViewSourceEditPage()
{
var url = window._content.location.href;
url = url.substring(12,url.length);
editPage(url,window, false);
editPage(window.content.location.href.substring(12), window, false);
}
// Strips the |view-source:| for saveURL()
function ViewSourceSavePage()
{
var url = window._content.document.location.href;
url = url.substring(12,url.length);
saveURL(window.content.location.href.substring(12), null, "SaveLinkTitle");
}
saveURL(url, null, "SaveLinkTitle");
function ViewSourceGoToLine()
{
var promptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
.getService(Components.interfaces.nsIPromptService);
var viewSourceBundle = getViewSourceBundle();
var input = {value:gLastLineFound};
for (;;) {
var ok = promptService.prompt(
window,
viewSourceBundle.getString("goToLineTitle"),
viewSourceBundle.getString("goToLineText"),
input,
null,
{value:0});
if (!ok) return;
var line = parseInt(input.value);
if (!(line > 0)) {
promptService.alert(window,
viewSourceBundle.getString("invalidInputTitle"),
viewSourceBundle.getString("invalidInputText"));
continue;
}
var found = goToLine(line);
if (found) {
break;
}
promptService.alert(window,
viewSourceBundle.getString("outOfRangeTitle"),
viewSourceBundle.getString("outOfRangeText"));
}
}
function goToLine(line)
{
var viewsource = window._content.document.body;
//
// The source document is made up of a number of pre elements with
// id attributes in the format <pre id="line123">, meaning that
// the first line in the pre element is number 123.
// Do binary search to find the pre element containing the line.
//
var pre;
for (var lbound = 0, ubound = viewsource.childNodes.length; ; ) {
var middle = (lbound + ubound) >> 1;
pre = viewsource.childNodes[middle];
var firstLine = parseInt(pre.id.substring(4));
if (lbound == ubound - 1) {
break;
}
if (line >= firstLine) {
lbound = middle;
} else {
ubound = middle;
}
}
var result = {};
var found = findLocation(pre, line, null, -1, false, result);
if (!found) {
return false;
}
var selection = window._content.getSelection();
selection.removeAllRanges();
// In our case, the range's startOffset is after "\n" on the previous line.
// Tune the selection at the beginning of the next line and do some tweaking
// to position the focusNode and the caret at the beginning of the line.
selection.QueryInterface(nsISelectionPrivate)
.interlinePosition = true;
selection.addRange(result.range);
if (!selection.isCollapsed) {
selection.collapseToEnd();
var offset = result.range.startOffset;
var node = result.range.startContainer;
if (offset < node.data.length) {
// The same text node spans across the "\n", just focus where we were.
selection.extend(node, offset);
}
else {
// There is another tag just after the "\n", hook there. We need
// to focus a safe point because there are edgy cases such as
// <span>...\n</span><span>...</span> vs.
// <span>...\n<span>...</span></span><span>...</span>
node = node.nextSibling ? node.nextSibling : node.parentNode.nextSibling;
selection.extend(node, 0);
}
}
var selCon = getSelectionController();
selCon.setDisplaySelection(nsISelectionController.SELECTION_ON);
selCon.setCaretEnabled(true);
selCon.setCaretVisibilityDuringSelection(true);
// Scroll the beginning of the line into view.
selCon.scrollSelectionIntoView(
nsISelectionController.SELECTION_NORMAL,
nsISelectionController.SELECTION_FOCUS_REGION,
true);
gLastLineFound = line;
//pch: don't update the status bar for now
//document.getElementById("statusbar-line-col").label = getViewSourceBundle()
// .getFormattedString("statusBarLineCol", [line, 1]);
return true;
}
function updateStatusBar()
{
// Reset the coalesce flag.
gSelectionListener.timeout = 0;
var statusBarField = document.getElementById("statusbar-line-col");
var selection = window._content.getSelection();
if (!selection.focusNode) {
statusBarField.label = '';
return;
}
if (selection.focusNode.nodeType != Node.TEXT_NODE) {
return;
}
var selCon = getSelectionController();
selCon.setDisplaySelection(nsISelectionController.SELECTION_ON);
selCon.setCaretEnabled(true);
selCon.setCaretVisibilityDuringSelection(true);
var interlinePosition = selection
.QueryInterface(nsISelectionPrivate).interlinePosition;
var result = {};
findLocation(null, -1,
selection.focusNode, selection.focusOffset, interlinePosition, result);
statusBarField.label = getViewSourceBundle()
.getFormattedString("statusBarLineCol", [result.line, result.col]);
}
//
// Loops through the text lines in the pre element. The arguments are either
// (pre, line) or (node, offset, interlinePosition). result is an out
// argument. If (pre, line) are specified (and node == null), result.range is
// a range spanning the specified line. If the (node, offset,
// interlinePosition) are specified, result.line and result.col are the line
// and column number of the specified offset in the specified node relative to
// the whole file.
//
function findLocation(pre, line, node, offset, interlinePosition, result)
{
if (node && !pre) {
//
// Look upwards to find the current pre element.
//
for (pre = node;
pre.nodeName != "PRE";
pre = pre.parentNode);
}
//
// The source document is made up of a number of pre elements with
// id attributes in the format <pre id="line123">, meaning that
// the first line in the pre element is number 123.
//
var curLine = parseInt(pre.id.substring(4));
//
// Walk through each of the text nodes and count newlines.
//
var treewalker = window._content.document
.createTreeWalker(pre, NodeFilter.SHOW_TEXT, null, false);
//
// The column number of the first character in the current text node.
//
var firstCol = 1;
var found = false;
for (var textNode = treewalker.firstChild();
textNode && !found;
textNode = treewalker.nextNode()) {
//
// \r is not a valid character in the DOM, so we only check for \n.
//
var lineArray = textNode.data.split(/\n/);
var lastLineInNode = curLine + lineArray.length - 1;
//
// Check if we can skip the text node without further inspection.
//
if (node ? (textNode != node) : (lastLineInNode < line)) {
if (lineArray.length > 1) {
firstCol = 1;
}
firstCol += lineArray[lineArray.length - 1].length;
curLine = lastLineInNode;
continue;
}
//
// curPos is the offset within the current text node of the first
// character in the current line.
//
for (var i = 0, curPos = 0;
i < lineArray.length;
curPos += lineArray[i++].length + 1) {
if (i > 0) {
curLine++;
}
if (node) {
if (offset >= curPos && offset <= curPos + lineArray[i].length) {
//
// If we are right after the \n of a line and interlinePosition is
// false, the caret looks as if it were at the end of the previous
// line, so we display that line and column instead.
//
if (i > 0 && offset == curPos && !interlinePosition) {
result.line = curLine - 1;
var prevPos = curPos - lineArray[i - 1].length;
result.col = (i == 1 ? firstCol : 1) + offset - prevPos;
} else {
result.line = curLine;
result.col = (i == 0 ? firstCol : 1) + offset - curPos;
}
found = true;
break;
}
} else {
if (curLine == line && !("range" in result)) {
result.range = document.createRange();
result.range.setStart(textNode, curPos);
//
// This will always be overridden later, except when we look for
// the very last line in the file (this is the only line that does
// not end with \n).
//
result.range.setEndAfter(pre.lastChild);
} else if (curLine == line + 1) {
result.range.setEnd(textNode, curPos - 1);
found = true;
break;
}
}
}
}
return found;
}
//function to toggle long-line wrapping and set the view_source.wrap_long_lines
//pref to persist the last state
function wrapLongLines()
{
//get the first pre tag which surrounds the entire viewsource content
var myWrap = window._content.document.getElementById('viewsource');
var myWrap = window._content.document.body;
if (myWrap.className == '')
myWrap.className = 'wrap';
@@ -185,20 +543,17 @@ function highlightSyntax()
var highlightSyntax = (highlightSyntaxMenu.getAttribute("checked") == "true");
gPrefs.setBoolPref("view_source.syntax_highlight", highlightSyntax);
var PageLoader = gBrowser.webNavigation.QueryInterface(pageLoaderIface);
var PageLoader = getBrowser().webNavigation.QueryInterface(pageLoaderIface);
PageLoader.LoadPage(PageLoader.currentDescriptor, pageLoaderIface.DISPLAY_NORMAL);
}
// Fix for bug 136322: this function overrides the function in
// browser.js to call PageLoader.LoadPage() instead of BrowserReloadWithFlags()
function BrowserSetForcedCharacterSet(aCharset)
{
var docCharset = gBrowser.docShell
.QueryInterface(Components.interfaces.nsIDocCharset);
var docCharset = getBrowser().docShell.QueryInterface(
Components.interfaces.nsIDocCharset);
docCharset.charset = aCharset;
var PageLoader = gBrowser.webNavigation.QueryInterface(pageLoaderIface);
var PageLoader = getBrowser().webNavigation.QueryInterface(pageLoaderIface);
PageLoader.LoadPage(PageLoader.currentDescriptor, pageLoaderIface.DISPLAY_NORMAL);
}
function BrowserFind()
{
findInPage(gBrowser, window._content, window._content)
}