+++ /dev/null
-/**
- * A Cache object is used to manage the node and the file behind it.
- * @constructor
- * @param {Object} node A DOM Node to watch.
- */
-function CacheObj(node) {
- var that = this;
-
- /* Gumdrop Image URL */
- that.gumdrop_url = 'chrome://itsalltext/locale/gumdrop.png';
- /* Gumdrop Image Width */
- that.gumdrop_width = ItsAllText.localeString('gumdrop.width');
- /* Gumdrop Image Height */
- that.gumdrop_height = ItsAllText.localeString('gumdrop.height');
-
- that.timestamp = 0;
- that.size = 0;
- that.node = node;
- that.button = null;
- that.initial_background = '';
- that._is_watching = false;
-
- that.node_id = that.getNodeIdentifier(node);
- var doc = node.ownerDocument;
-
- /* This is a unique identifier for use on the web page to prevent the
- * web page from knowing what it's connected to.
- * @type String
- */
- that.uid = that.hashString([ doc.location.toString(),
- Math.random(),
- that.node_id ].join(':'));
- // @todo [security] Add a serial to the uid hash.
-
- node.setAttribute(ItsAllText.MYSTRING+'_UID', that.uid);
- ItsAllText.tracker[that.uid] = that;
-
- /* Figure out where we will store the file. While the filename can
- * change, the directory that the file is stored in should not!
- */
- var host = window.escape(doc.location.hostname);
- var hash = that.hashString([ doc.location.protocol,
- doc.location.port,
- doc.location.search,
- doc.location.pathname,
- that.node_id ].join(':'));
- that.base_filename = [host, hash.slice(0,10)].join('.');
- /* The current extension.
- * @type String
- */
- that.extension = null;
-
- /* Stores an nsILocalFile pointing to the current filename.
- * @type nsILocalFile
- */
- that.file = null;
-
- /* Set the default extension and create the nsIFile object. */
- var extension = node.getAttribute('itsalltext-extension');
- if (typeof(extension) != 'string' || !extension.match(/^[.a-z0-9]+$/i)) {
- extension = ItsAllText.getExtensions()[0];
- }
- that.setExtension(extension);
-
- that.initFromExistingFile();
-
- /**
- * A callback for when the textarea/textbox or button has
- * the mouse waved over it.
- * @param {Event} event The event object.
- */
- that.mouseover = function(event) {
- var style = that.button?that.button.style:null;
- if (style) {
- style.setProperty('opacity', '0.7', 'important');
- ItsAllText.refreshTextarea(that.node);
- }
- };
-
- /**
- * A callback for when the textarea/textbox or button has
- * the mouse waved over it and the moved off.
- * @param {Event} event The event object.
- */
- that.mouseout = function(event) {
- var style = that.button?that.button.style:null;
- if (style) {
- style.setProperty('opacity', '0.1', 'important');
- }
- };
-}
-
-/**
- * Set the extension for the file to ext.
- * @param {String} ext The extension. Must include the dot. Example: .txt
- */
-CacheObj.prototype.setExtension = function(ext) {
- if (ext == this.extension) {
- return; /* It's already set. No problem. */
- }
-
- /* Create the nsIFile object */
- var file = ItsAllText.factoryFile();
- file.initWithFile(ItsAllText.getEditDir());
- file.append([this.base_filename,ext].join(''));
-
- this.extension = ext;
- this.file = file;
-};
-
-/**
- * This function looks for an existing file and starts to monitor
- * if the file exists already. It also deletes all existing files for
- * this cache object.
- */
-CacheObj.prototype.initFromExistingFile = function() {
- var base = this.base_filename;
- var fobj = ItsAllText.getEditDir();
- var entries = fobj.directoryEntries;
- var ext = null;
- var tmpfiles = /(\.bak|.tmp|~)$/;
- var entry;
- while (entries.hasMoreElements()) {
- entry = entries.getNext();
- entry.QueryInterface(Components.interfaces.nsIFile);
- if (entry.leafName.indexOf(base) === 0) {
- // startswith
- if (ext === null && !entry.leafName.match(tmpfiles)) {
- ext = entry.leafName.slice(base.length);
- }
- try{
- entry.remove(false);
- } catch(e) {
- that.debug('unable to remove',entry,'because:',e);
- }
- }
- }
- if (ext !== null) {
- this.setExtension(ext);
- this._is_watching = true;
- }
-};
-
-/**
- * Returns a unique identifier for the node, within the document.
- * @returns {String} the unique identifier.
- */
-CacheObj.prototype.getNodeIdentifier = function(node) {
- var id = node.getAttribute('id');
- var name, doc, attr, serial;
- if (!id) {
- name = node.getAttribute('name');
- doc = node.ownerDocument.getElementsByTagName('html')[0];
- attr = ItsAllText.MYSTRING+'_id_serial';
-
- /* Get a serial that's unique to this document */
- serial = doc.getAttribute(attr);
- if (serial) { serial = parseInt(serial, 10)+1;
- } else { serial = 1; }
- id = [ItsAllText.MYSTRING,'generated_id',name,serial].join('_');
- doc.setAttribute(attr,serial);
- node.setAttribute('id',id);
- }
- return id;
-};
-
-/**
- * Convert to this object to a useful string.
- * @returns {String} A string representation of this object.
- */
-CacheObj.prototype.toString = function() {
- return [ "CacheObj",
- " uid=",this.uid,
- " timestamp=",this.timestamp,
- " size=",this.size
- ].join('');
-};
-
-/**
- * Write out the contents of the node.
- */
-CacheObj.prototype.write = function() {
- var foStream = Components.
- classes["@mozilla.org/network/file-output-stream;1"].
- createInstance(Components.interfaces.nsIFileOutputStream);
-
- /* write, create, truncate */
- foStream.init(this.file, 0x02 | 0x08 | 0x20,
- parseInt('0600',8), 0);
-
- /* We convert to charset */
- var conv = Components.
- classes["@mozilla.org/intl/scriptableunicodeconverter"].
- createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
- conv.charset = ItsAllText.getCharset();
-
- var text = conv.ConvertFromUnicode(this.node.value);
- foStream.write(text, text.length);
- foStream.close();
-
- /* Reset Timestamp and filesize, to prevent a spurious refresh */
- this.timestamp = this.file.lastModifiedTime;
- this.size = this.file.fileSize;
-
- /* Register the file to be deleted on app exit. */
- Components.classes["@mozilla.org/uriloader/external-helper-app-service;1"].
- getService(Components.interfaces.nsPIExternalAppLauncher).
- deleteTemporaryFileOnExit(this.file);
-
- return this.file.path;
-};
-
-/**
- * Fetches the computed CSS attribute for a specific node
- * @param {DOM} node The DOM node to get the information for.
- * @param {String} attr The CSS-style attribute to fetch (not DOM name).
- * @returns attribute
- */
-CacheObj.prototype.getStyle = function(node, attr) {
- var view = node ? node.ownerDocument.defaultView : null;
- var style = view.getComputedStyle(node, '');
- return style.getPropertyCSSValue(attr).cssText;
-};
-
-// @todo [9] IDEA: Pass in the line number to the editor, arbitrary command?
-// @todo [9] IDEA: Allow the user to pick an alternative editor?
-// @todo [9] IDEA: A different editor per extension?
-/**
- * Edit a textarea as a file.
- * @param {String} extension The extension of the file to edit.
- */
-CacheObj.prototype.edit = function(extension) {
- if (typeof(extension) == 'string') {
- this.setExtension(extension);
- }
- var filename = this.write();
- this.initial_background = this.node.style.backgroundColor;
- this.initial_color = this.node.style.color;
- var program = null;
- var process;
- var args, result, ec, e, params;
-
- try {
- program = ItsAllText.getEditor();
- // checks
- if (program === null) { throw {name:"Editor is not set."}; }
- if (!program.exists()) { throw {name:"NS_ERROR_FILE_NOT_FOUND"}; }
- /* Mac check because of
- * https://bugzilla.mozilla.org/show_bug.cgi?id=322865 */
- if (!(ItsAllText.isDarwin() || program.isExecutable())) {
- throw {name:"NS_ERROR_FILE_ACCESS_DENIED"}; }
-
- // create an nsIProcess
- process = Components.
- classes["@mozilla.org/process/util;1"].
- createInstance(Components.interfaces.nsIProcess);
- process.init(program);
-
- // Run the process.
- // If first param is true, calling thread will be blocked until
- // called process terminates.
- // Second and third params are used to pass command-line arguments
- // to the process.
- args = [filename];
- result = {};
- ec = process.run(false, args, args.length, result);
- this._is_watching = true;
- } catch(e) {
- params = {out:null,
- exists: program ? program.exists() : false,
- path: ItsAllText.preferences.editor,
- exception: e.name };
- window.openDialog('chrome://itsalltext/chrome/badeditor.xul',
- null,
- "chrome,titlebar,toolbar,centerscreen,modal",
- params);
- if(params.out !== null && params.out.do_preferences) {
- ItsAllText.openPreferences(true);
- this.edit(extension);
- }
- }
-};
-
-/**
- * Delete the file from disk.
- */
-CacheObj.prototype.remove = function() {
- if(this.file.exists()) {
- try {
- this.file.remove();
- } catch(e) {
- that.debug('remove(',this.file.path,'): ',e);
- return false;
- }
- }
- return true;
-};
-
-/**
- * Read the file from disk.
- */
-CacheObj.prototype.read = function() {
- /* read file, reset ts & size */
- var DEFAULT_REPLACEMENT_CHARACTER = 65533;
- var buffer = [];
- var fis, istream, str, e;
-
- try {
- fis = Components.
- classes["@mozilla.org/network/file-input-stream;1"].
- createInstance(Components.interfaces.nsIFileInputStream);
- fis.init(this.file, 0x01, parseInt('00400',8), 0);
- // MODE_RDONLY | PERM_IRUSR
-
- istream = Components.
- classes["@mozilla.org/intl/converter-input-stream;1"].
- createInstance(Components.interfaces.nsIConverterInputStream);
- istream.init(fis, ItsAllText.getCharset(), 4096, DEFAULT_REPLACEMENT_CHARACTER);
-
- str = {};
- while (istream.readString(4096, str) !== 0) {
- buffer.push(str.value);
- }
-
- istream.close();
- fis.close();
-
- this.timestamp = this.file.lastModifiedTime;
- this.size = this.file.fileSize;
-
- return buffer.join('');
- } catch(e) {
- return null;
- }
-};
-
-/**
- * Has the file object changed?
- * @returns {boolean} returns true if the file has changed on disk.
- */
- CacheObj.prototype.hasChanged = function() {
- /* Check exists. Check ts and size. */
- if(!this._is_watching ||
- !this.file.exists() ||
- !this.file.isReadable() ||
- (this.file.lastModifiedTime == this.timestamp &&
- this.file.fileSize == this.size)) {
- return false;
- } else {
- return true;
- }
- };
-
-/**
- * Part of the fading technique.
- * @param {Object} pallet A Color blend pallet object.
- * @param {int} step Size of a step.
- * @param {delay} delay Delay in microseconds.
- */
-CacheObj.prototype.fadeStep = function(background_pallet, color_pallet, step, delay) {
- var that = this;
- return function() {
- if (step < background_pallet.length) {
- that.node.style.backgroundColor = background_pallet[step].hex();
- that.node.style.color = color_pallet[step].hex();
- step++;
- setTimeout(that.fadeStep(background_pallet, color_pallet, step, delay),delay);
- } else {
- that.node.style.backgroundColor = that.initial_background;
- that.node.style.color = that.initial_color;
- }
- };
-};
-
-/**
- * Node fade technique.
- * @param {int} steps Number of steps in the transition.
- * @param {int} delay How long to wait between delay (microseconds).
- */
-CacheObj.prototype.fade = function(steps, delay) {
- var color = this.getStyle(this.node, 'color');
- var color_stop = new ItsAllText.Color(color);
- var color_start = new ItsAllText.Color('black');
- var color_pallet = color_start.blend(color_stop, steps);
-
- var background = this.getStyle(this.node, 'background-color');
- var background_stop = new ItsAllText.Color(background);
- var background_start = new ItsAllText.Color('yellow');
- var background_pallet = background_start.blend(background_stop, steps);
- setTimeout(this.fadeStep(background_pallet, color_pallet, 0, delay), delay);
-};
-
-/**
- * Update the node from the file.
- * @returns {boolean} Returns true ifthe file changed.
- */
-CacheObj.prototype.update = function() {
- var value;
- if (this.hasChanged()) {
- value = this.read();
- if (value !== null) {
- this.fade(20, 100);
- this.node.value = value;
- return true;
- }
- }
- return false; // If we fall through, we
-};
-
-/**
- * Add the gumdrop to a textarea.
- * @param {Object} cache_object The Cache Object that contains the node.
- */
-CacheObj.prototype.addGumDrop = function() {
- var cache_object = this;
- if (cache_object.button !== null) {
- cache_object.adjust();
- return; /*already done*/
- }
- if (ItsAllText.getDisableGumdrops()) {
- return;
- }
- ItsAllText.debug('addGumDrop()',cache_object.node_id,cache_object.uid);
-
- var node = cache_object.node;
- var doc = node.ownerDocument;
- var offsetNode = node;
- if (!node.parentNode) { return; }
-
- var gumdrop = doc.createElementNS(ItsAllText.XHTMLNS, "img");
- gumdrop.setAttribute('src', this.gumdrop_url);
- var gid = cache_object.getNodeIdentifier(gumdrop);
-
- if (ItsAllText.getDebug()) {
- gumdrop.setAttribute('title', cache_object.node_id);
- } else {
- gumdrop.setAttribute('title', ItsAllText.localeString('program_name'));
- }
- cache_object.button = gumdrop; // Store it for easy finding in the future.
-
- // Image Attributes
- gumdrop.style.setProperty('cursor', 'pointer', 'important');
- gumdrop.style.setProperty('display', 'block', 'important');
- gumdrop.style.setProperty('position', 'absolute', 'important');
- gumdrop.style.setProperty('padding', '0', 'important');
- gumdrop.style.setProperty('margin', '0', 'important');
- gumdrop.style.setProperty('border', 'none', 'important');
- gumdrop.style.setProperty('zIndex', '1', 'important'); // we want it just above normal items.
-
- gumdrop.style.setProperty('width', this.gumdrop_width+'px', 'important');
- gumdrop.style.setProperty('height', this.gumdrop_height+'px', 'important');
-
- gumdrop.setAttribute(ItsAllText.MYSTRING+'_UID', cache_object.uid);
-
- var clickfun = function(event) {
- cache_object.edit();
- event.stopPropagation();
- return false;
- };
- var contextfun = function(event) {
- /* This took forever to fix; roughly 80+ man hours were spent
- * over 5 months trying to make this stupid thing work.
- * The documentation is completely wrong and useless.
- *
- * Excuse me while I scream.
- *
- * See Mozilla bugs: 287357, 362403, 279703
- */
- var popup = ItsAllText.rebuildMenu(cache_object.uid);
- document.popupNode = popup;
- popup.showPopup(popup,
- event.screenX, event.screenY,
- 'context', null, null);
- event.stopPropagation();
- return false;
- };
-
- // Click event handler
- gumdrop.addEventListener("click", clickfun, false);
- gumdrop.addEventListener("contextmenu", contextfun, false);
-
- // Insert it into the document
- var parent = node.parentNode;
- var nextSibling = node.nextSibling;
-
- if (nextSibling) {
- parent.insertBefore(gumdrop, nextSibling);
- } else {
- parent.appendChild(gumdrop);
- }
-
- // Add mouseovers/outs
- node.addEventListener("mouseover", cache_object.mouseover, false);
- node.addEventListener("mouseout", cache_object.mouseout, false);
- gumdrop.addEventListener("mouseover", cache_object.mouseover, false);
- gumdrop.addEventListener("mouseout", cache_object.mouseout, false);
-
- cache_object.mouseout(null);
- cache_object.adjust();
-};
-
-/**
- * Updates the position of the gumdrop, incase the textarea shifts around.
- */
-CacheObj.prototype.adjust = function() {
- var gumdrop = this.button;
- var el = this.node;
- var doc = el.ownerDocument;
-
- if (ItsAllText.getDisableGumdrops()) {
- if(gumdrop && gumdrop.style.display != 'none') {
- gumdrop.style.setProperty('display', 'none', 'important');
- }
- return;
- }
-
- var style = gumdrop.style;
- if (!gumdrop || !el) { return; }
- var display = '';
- var cstyle = doc.defaultView.getComputedStyle(el, '');
- if (cstyle.display == 'none' ||
- cstyle.visibility == 'hidden' ||
- el.getAttribute('readonly') ||
- el.getAttribute('disabled')
- ) {
- display = 'none';
- }
- if (style.display != display) {
- style.setProperty('display', display, 'important');
- }
-
- /* Reposition the gumdrops incase the dom changed. */
- var left = Math.max(1, el.offsetWidth-this.gumdrop_width);
- var top = el.offsetHeight;
- var coord;
- if (el.offsetParent === gumdrop.offsetParent) {
- left += el.offsetLeft;
- top += el.offsetTop;
- } else {
- coord = ItsAllText.getContainingBlockOffset(el, gumdrop.offsetParent);
- left += coord[0];
- top += coord[1];
- }
- if(left && top) {
- left = [left,'px'].join('');
- top = [top,'px'].join('');
- if(style.left != left) { style.setProperty('left', left, 'important');}
- if(style.top != top) { style.setProperty('top', top, 'important');}
- }
-};
-
-/**
- * Creates a mostly unique hash of a string
- * Most of this code is from:
- * http://developer.mozilla.org/en/docs/nsICryptoHash
- * @param {String} some_string The string to hash.
- * @returns {String} a hashed string.
- */
-CacheObj.prototype.hashString = function(some_string) {
- var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
- converter.charset = "UTF-8";
-
- /* result is the result of the hashing. It's not yet a string,
- * that'll be in retval.
- * result.value will contain the array length
- */
- var result = {};
-
- /* data is an array of bytes */
- var data = converter.convertToByteArray(some_string, result);
- var ch = Components.classes["@mozilla.org/security/hash;1"].createInstance(Components.interfaces.nsICryptoHash);
-
- ch.init(ch.MD5);
- ch.update(data, data.length);
- var hash = ch.finish(true);
-
- // return the two-digit hexadecimal code for a byte
- var toHexString = function(charCode) {
- return ("0" + charCode.toString(36)).slice(-2);
- };
-
- // convert the binary hash data to a hex string.
- var retval = [];
- for(i in hash) {
- retval[i] = toHexString(hash.charCodeAt(i));
- }
-
- return(retval.join(""));
-};
projects / x_full.git / blobdiff