322 lines
8.5 KiB
JavaScript
322 lines
8.5 KiB
JavaScript
///// represents a single document
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var haste_document = function() {
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this.locked = false;
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};
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// Get this document from the server and lock it here
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haste_document.prototype.load = function(key, callback, lang) {
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var _this = this;
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$.ajax('/documents/' + key, {
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type: 'get',
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dataType: 'json',
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success: function(res) {
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_this.locked = true;
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_this.key = key;
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_this.data = res.data;
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try {
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var high = lang ? hljs.highlight(lang, res.data) : hljs.highlightAuto(res.data);
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} catch(err) {
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high = { value: res.data, language: null };
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}
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callback({
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value: high.value,
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key: key,
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language: high.language || lang
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});
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},
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error: function(err) {
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callback(false);
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}
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});
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};
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// Save this document to the server and lock it here
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haste_document.prototype.save = function(data, callback) {
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if (this.locked) {
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return false;
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}
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this.data = data;
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var _this = this;
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$.ajax('/documents', {
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type: 'post',
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data: data,
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dataType: 'json',
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success: function(res) {
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_this.locked = true;
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_this.key = res.key;
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var high = hljs.highlightAuto(data);
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callback({
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value: high.value,
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key: res.key,
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language: high.language
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});
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}
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});
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};
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///// represents the paste application
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var haste = function(appName, options) {
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this.appName = appName;
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this.baseUrl = window.location.href; // since this is loaded first
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this.$textarea = $('textarea');
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this.$box = $('#box');
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this.$code = $('#box code');
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this.options = options;
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this.configureShortcuts();
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this.configureButtons();
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// If twitter is disabled, hide the button
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if (!options.twitter) {
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$('#key .box2 .twitter').hide();
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}
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};
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// Set the page title - include the appName
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haste.prototype.setTitle = function(ext) {
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var title = ext ? this.appName + ' - ' + ext : this.appName;
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document.title = title;
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};
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// Show the light key
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haste.prototype.lightKey = function() {
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this.configureKey(['new', 'save']);
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};
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// Show the full key
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haste.prototype.fullKey = function() {
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this.configureKey(['new', 'duplicate', 'twitter', 'link']);
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};
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// Set the key up for certain things to be enabled
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haste.prototype.configureKey = function(enable) {
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var $this, i = 0;
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$('#key .box2 .function').each(function() {
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$this = $(this);
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for (i = 0; i < enable.length; i++) {
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if ($this.hasClass(enable[i])) {
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$this.addClass('enabled');
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return true;
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}
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}
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$this.removeClass('enabled');
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});
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};
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// Remove the current document (if there is one)
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// and set up for a new one
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haste.prototype.newDocument = function(hideHistory) {
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this.$box.hide();
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this.doc = new haste_document();
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if (!hideHistory) {
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window.history.pushState(null, this.appName, '/');
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}
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this.setTitle();
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this.lightKey();
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this.$textarea.val('').show('fast', function() {
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this.focus();
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});
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};
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// Map of common extensions
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haste.extensionMap = {
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rb: 'ruby', py: 'python', pl: 'perl', php: 'php', scala: 'scala', go: 'go',
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xml: 'xml', html: 'xml', htm: 'xml', css: 'css', js: 'javascript', vbs: 'vbscript',
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lua: 'lua', pas: 'delphi', java: 'java', cpp: 'cpp', cc: 'cpp', m: 'objectivec',
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vala: 'vala', cs: 'cs', sql: 'sql', sm: 'smalltalk', lisp: 'lisp', ini: 'ini',
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diff: 'diff', bash: 'bash', sh: 'bash', tex: 'tex', erl: 'erlang', hs: 'haskell'
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};
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// Map an extension to a language
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haste.prototype.lookupExtension = function(ext) {
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var match = haste.extensionMap[ext];
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return match; // if not found, will auto-detect
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};
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// Load a document and show it
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haste.prototype.loadDocument = function(key) {
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// Split the key up
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var parts = key.split('.', 2);
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// Ask for what we want
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var _this = this;
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_this.doc = new haste_document();
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_this.doc.load(parts[0], function(ret) {
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if (ret) {
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_this.$code.html(ret.value);
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var title = ret.key;
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if (ret.language) {
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title += ' - ' + ret.language;
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}
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_this.setTitle(title);
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_this.fullKey();
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_this.$textarea.val('').hide();
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_this.$box.show().focus();
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}
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else {
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_this.newDocument();
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}
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}, this.lookupExtension(parts[1]));
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};
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// Duplicate the current document - only if locked
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haste.prototype.duplicateDocument = function() {
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if (this.doc.locked) {
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var currentData = this.doc.data;
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this.newDocument();
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this.$textarea.val(currentData);
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}
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};
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// Lock the current document
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haste.prototype.lockDocument = function() {
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var _this = this;
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this.doc.save(this.$textarea.val(), function(ret) {
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if (ret) {
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_this.$code.html(ret.value);
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var title = ret.key;
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if (ret.language) {
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title += ' - ' + ret.language;
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}
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_this.setTitle(title);
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_this.fullKey();
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window.history.pushState(null, _this.appName + '-' + ret.key, '/' + ret.key);
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_this.$textarea.val('').hide();
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_this.$box.show().focus();
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}
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});
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};
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haste.prototype.configureButtons = function() {
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var _this = this;
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this.buttons = [
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{
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$where: $('#key .box2 .save'),
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label: 'Save',
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shortcutDescription: 'control + s',
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shortcut: function(evt) {
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return evt.ctrlKey && (evt.keyCode === 76 || evt.keyCode === 83);
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},
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action: function() {
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if (_this.$textarea.val().replace(/^\s+|\s+$/g, '') !== '') {
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_this.lockDocument();
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}
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}
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},
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{
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$where: $('#key .box2 .new'),
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label: 'New',
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shortcut: function(evt) {
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return evt.ctrlKey && evt.keyCode === 78
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},
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shortcutDescription: 'control + n',
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action: function() {
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_this.newDocument(!_this.doc.key);
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}
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},
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{
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$where: $('#key .box2 .duplicate'),
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label: 'Duplicate & Edit',
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shortcut: function(evt) {
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return _this.doc.locked && evt.ctrlKey && evt.keyCode === 68;
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},
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shortcutDescription: 'control + d',
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action: function() {
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_this.duplicateDocument();
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}
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},
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{
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$where: $('#key .box2 .twitter'),
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label: 'Twitter',
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shortcut: function(evt) {
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return _this.options.twitter && _this.doc.locked && evt.ctrlKey && evt.keyCode == 84;
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},
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shortcutDescription: 'control + t',
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action: function() {
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window.open('https://twitter.com/share?url=' + encodeURI(_this.baseUrl + _this.doc.key));
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}
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},
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{
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$where: $('#key .box2 .link'),
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label: 'Copy URL',
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action: function() {
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alert('not yet implemented');
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}
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}
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];
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for (var i = 0; i < this.buttons.length; i++) {
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this.configureButton(this.buttons[i]);
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}
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};
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haste.prototype.configureButton = function(options) {
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// Handle the click action
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options.$where.click(function(evt) {
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evt.preventDefault();
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if ($(this).hasClass('enabled')) {
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options.action();
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}
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});
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// Show the label
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options.$where.mouseenter(function(evt) {
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$('#key .box3 .label').text(options.label);
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$('#key .box3 .shortcut').text(options.shortcutDescription || '');
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$('#key .box3').show();
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});
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// Hide the label
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options.$where.mouseleave(function(evt) {
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$('#key .box3').hide();
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});
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};
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// Configure keyboard shortcuts for the textarea
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haste.prototype.configureShortcuts = function() {
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var _this = this;
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$(document.body).keydown(function(evt) {
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var button;
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for (var i = 0 ; i < _this.buttons.length; i++) {
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button = _this.buttons[i];
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if (button.shortcut && button.shortcut(evt)) {
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evt.preventDefault();
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button.action();
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return;
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}
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}
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});
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};
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///// Tab behavior in the textarea - 2 spaces per tab
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$(function() {
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$('textarea').keydown(function(evt) {
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if (evt.keyCode === 9) {
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evt.preventDefault();
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var myValue = ' ';
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// http://stackoverflow.com/questions/946534/insert-text-into-textarea-with-jquery
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// For browsers like Internet Explorer
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if (document.selection) {
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this.focus();
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sel = document.selection.createRange();
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sel.text = myValue;
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this.focus();
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}
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// Mozilla and Webkit
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else if (this.selectionStart || this.selectionStart == '0') {
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var startPos = this.selectionStart;
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var endPos = this.selectionEnd;
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var scrollTop = this.scrollTop;
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this.value = this.value.substring(0, startPos) + myValue +
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this.value.substring(endPos,this.value.length);
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this.focus();
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this.selectionStart = startPos + myValue.length;
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this.selectionEnd = startPos + myValue.length;
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this.scrollTop = scrollTop;
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}
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else {
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this.value += myValue;
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this.focus();
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}
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}
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});
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});
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