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jsshell.js
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jsshell.js
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/*
* jsshell : Chrome Extension
* Hugo Bonacci (http://www.hugoware.net)
* Libraries used by jsshell
*/
//aliases for additional functions
var jsshell;
var js;
//script for executing a script in a separate area from the shell
//but probably does little actually protect anything
function ____execute__jsshell___script(script) {
eval(script);
}
//create a new jsshell class
(function() {
//create the shell
var shell = {
//constants for the shell
PORT_NAME:"jsshell",
RESOURCE_URL:"http://www.hugoware.net/chrome_plugin/",
EDITOR_OFFSET:15,
EDITOR_START_OFFSET:40,
EDITOR_OPACITY:0.3,
ANIMATION_SPEED:300,
KEY_ENTER:13,
KEY_TAB:9,
KEY_DELETE:46,
KEY_DOWN_ARROW:40,
KEY_F1:112,
KEY_QUESTION:191,
TAB_INSERT:" ",
DEFAULT_NOTE_DURATION:4000,
NOTE_INTERVAL:250,
NOTE_OFFSET:25,
ERROR_COLOR:"#090",
//colors for elements on the page
AUTOCOMPLETE_COLORS:{
"css":"#9cd75d",
"id":"#d77628",
"element":"#528def",
"jQuery":"#b36ecd",
"jLinq":"#6ecdbe",
"jsshell":"#8f8f8f"
},
//utility functions used by other classes
util: {
//merges one clas into another
merge:function(target, source) {
target = target == null ? {} : target;
for(var item in source) {
target[item] = source[item];
}
return target;
},
//returns a path to a remote resource file
resourceUrl:function(file) {
return [shell.RESOURCE_URL, file].join("");
},
//make sure a string matches another
equals:function(value, compare) {
if (!(value && compare)) { return false; }
var expression = new RegExp(["^", value.toString(), "$"].join(""), "i");
return compare.match(expression);
},
//very limited encoding of strings
encode:function(str) {
str = (str ? str : "").toString();
return str.replace(/\&/g, "&")
.replace(/</g,"<")
.replace(/>/g, ">");
},
//create a regex escaped version of the current address
escapeCurrentUrl:function() {
var url = window.location.toString();
url = url.replace(/^https?:\/{2}/i, "");
url = url.replace(/\./i, "\\.");
return ["^https?://", url].join("");
}
},
//added functionality for elements
extend:{
//adds extra functionality for a text area
textarea:function(area) {
var element = area.get(0);
//returns the selected area of the text
area.getSelectionRange = function() {
return {
start:element.selectionStart,
end:element.selectionEnd
};
};
//sets the selection of an element
area.setSelectionRange = function(start, end) {
end = end ? end : start;
element.setSelectionRange(start, end);
};
//inserts text into the current cursor position
area.insertText = function(text, position) {
//create the updated text information
var position = position ? position : area.getSelectionRange();
var current = area.val();
var value = [
current.substr(0, position.start),
text,
current.substr(position.end, current.length - position.end)
].join("");
//then replace it and update the cursor position
area.val(value);
area.setSelectionRange(position.start + text.length);
};
//gets the text selection (if any)
area.getSelectedText = function() {
var position = area.getSelectionRange();
return position.start == position.end
? area.val()
: area.val().substr(position.start, position.end - position.start);
};
//create some default event handling
area.events = {
keydown:function(e) { },
keyup:function(e) { }
};
//handle pressing a key on the down event
area.keydown(function(e) {
if (area.events.keydown(e) != null) { return; }
switch(e.keyCode) {
case shell.KEY_TAB : e.preventDefault(); area.insertText(shell.TAB_INSERT); break;
case shell.KEY_DELETE : if (e.ctrlKey) { area.text(""); }; break;
default : return;
}
});
//gets the word the cursor is presently over
area.getCurrentWord = function() {
//check where to start
var selected = area.getSelectionRange();
//check if there is something already selected
if (selected.start < selected.end) {
return area.getSelectedText();
}
//extract both halves
var value = area.val();
var prefix = value.substr(0, selected.start);
var suffix = value.substr(selected.start, value.length);
//try and extract just the word
try {
prefix = prefix.match(/[a-z0-9_\-]*$/i, "")[0];
suffix = suffix.match(/^[a-z0-9_\-]*/i, "")[0];
return [prefix, suffix].join("");
}
catch (e) {
return "";
}
};
//handle pressing a key on the up event
area.keyup(function(e) {
if (area.events.keyup(e) != null) { return; }
});
}
},
//access to user settings
settings: { },
//validation methods used in different parts of the program
validate:{
//verifies this is an allowed color format
isColor:function(color) {
color = $.trim((color ? color : "").toString());
return color.match(new RegExp(/^\#?[0-9a-f]{3}([0-9a-f]{3})?$/i));
}
},
//formating values from different types
format:{
//attempts to return a formatted string as a color
toColor:function(color) {
color = $.trim((color ? color : "").toString());
color = color.replace(/[^a-f0-9]/gi, "");
color = ["#", color.toUpperCase()].join("");
//make sure it is still valid
return shell.validate.isColor(color) ? color : null;
},
//converts a string to an identity
toIdentity:function(str) {
str = $.trim((str ? str : "").toLowerCase().toString());
str = str.replace(/[^a-z0-9_\-]/gi, "");
return str;
},
//tries and formats a number
toNumber:function(value) {
value = ((value ? value : "").toString());
value = value.replace(/[^0-9]/g, "");
if (value.length == 0) { return null; }
var number = parseInt(value);
return number ? number : null;
},
//tries and formats a boolean value
toBool:function(value) {
try {
var result = value.toString().match(/true/i);
return (result || false);
}
catch (e) {
return null;
}
},
},
//layer for connecting and posting messages with the background
messaging:{
port:null,
//standard method for sending messages
post:function(args, callback) {
shell.messaging.port.postMessage(args, callback);
},
//handles when a message is sent
onMessage:function(request) {
if (!(request && request.command)) { return; }
//update the settings for the window
if (shell.util.equals(request.command, "update")) {
shell.extension.loadSettings(request.settings);
shell.ui.update();
}
},
//handles when a request is made
onRequest:function(request) {
if (!(request && request.command)) { return; }
//display the window after clicking the icon to load it
if (shell.util.equals(request.command, "load")) {
shell.extension.loadSettings(request.settings);
shell.ui.window.showEditor();
}
//update settings for a window
else if (shell.util.equals(request.command, "update")) {
shell.extension.loadSettings(request.settings);
shell.refresh();
}
},
//sets up the communication layer with the background
init:function() {
shell.messaging.port = chrome.extension.connect({name:shell.PORT_NAME});
shell.messaging.port.onMessage.addListener(shell.messaging.onMessage);
chrome.extension.onRequest.addListener(shell.messaging.onRequest);
}
},
//controls to display as part of the page
ui:{
//allows editing of custom page commands
custom:{
//creates a new designer window
designer:function(identity) {
identity = shell.format.toIdentity(identity);
var self = this;
shell.util.merge(this, {
//elements on the designer
container:null,
header:null,
buttons:{
save:null,
close:null,
},
fields:{
identity:null,
automatic:null,
expression:null,
script:null
},
//creates the actual controls for this designer
build:function() {
//the main container for the designer
self.container = $("<div/>").css({
"padding":"0",
"text-align":"left",
"font-family":"sans-serif",
"margin":"0",
"position":"absolute",
"top":"15px",
"left":"15px",
"-webkit-box-shadow": "0px 1px 10px black",
"-webkit-border-radius": "10px",
"border":"1px solid rgba(255,255,255,0.3)",
"background": ["url(", shell.RESOURCE_URL, "dialog-background.png", ") #444 top left repeat-x"].join(""),
"min-height":"350px",
"min-width":"300px"
})
.addClass(shell.ui.custom.getIdentityName(identity));
//create the header for the dialog
self.header = $("<div/>").css({
"margin":"0",
"padding":"5px 10px",
"height":"35px",
"cursor":"pointer",
"text-align":"left",
"font-family":"sans-serif",
"color":"#fff",
"text-shadow":"0px 1px 8px black",
"font-size":"13px",
"font-weight":"bold"
})
.text("Edit Custom Command");
//button setup
var setupButton = function(image) {
return $("<div/>").css({
"background":["url(", shell.RESOURCE_URL, image, ") top left no-repeat"].join(""),
"height":"25px",
"width":"25px",
"position":"relative",
"top":"4px",
"float":"right"
});
};
//assign the button events
self.buttons.save = setupButton("icon-confirm.png").click(self.handleSave);
self.buttons.close = setupButton("icon-close.png").click(self.handleClose);
//create the fields that are going to be used
self.fields.identity = $("<input type='text' />");
self.fields.automatic = $("<input type='checkbox' />");
self.fields.expression = $("<input type='text' />");
//create a table to hold the fields
//Yeah, you read that right -- A TABLE!
var controls = $("<table/>").attr("cellpadding", 0)
.attr("cellspacing", 0)
.width("100%");
//shortcut for creating rows
var addRow = function(text, control, title) {
//the content itself
var row = $("<tr/>").attr("title", title)
.appendTo(controls);
//the label row
$("<td/>").css({
"text-align":"left",
"font-family":"sans-serif",
"color":"#fff",
"font-weight":"bold",
"margin":"0",
"padding":"0 10px 15px 0",
"text-align":"right",
"font-size":"10px",
"cursor":"help",
"width":"140px",
"text-shadow":"0px 1px 8px black",
})
.text(text)
.appendTo(row);
//create the input container
$("<td/>")
.appendTo(row)
.append(control)
.css({
"padding":"0 15px 0 0"
});
//general style changes
control.css({
"background":"rgba(0,0,0,0.3)",
"color":"#fff",
"font-family":"monospace",
"font-size":"12px"
});
//style the input boxes additionally
if (control.attr("type") == "text") {
control.css({
"width":"100%",
"-webkit-border-radius": "2px",
"border":"1px solid rgba(255,255,255,0.3)"
});
}
};
//add each row
addRow("Command Shortcut", self.fields.identity, "Allows you to run this command using the 'call' method or '!shortcut'");
addRow("URL Match RegEx", self.fields.expression, "The expression to match to automatically execute when browsing to a page.");
addRow("Autorun Command", self.fields.automatic, "Sets if this command runs automatically when browsing to the pages that match the expression above.");
//create the text editor area
self.fields.script = $("<textarea></textarea>").css({
"padding":"10px",
"margin":"0",
"width":"400px",
"height":"250px",
"border":"1px solid rgba(255,255,255,0.3)",
"font-family":"monospace",
"font-size":"12px",
"font-weight":"normal",
"background":"rgba(0,0,0,0.3)",
"color":"#fff",
"text-shadow":"0px 1px 4px black"
});
//add extra functionality for the area
shell.extend.textarea(self.fields.script);
//and the editor
var editor = $("<div/>").css({
"padding":"0 7px 7px 7px",
"margin":"0"
});
//construct the full control
self.container.append(self.header);
self.buttons.save.appendTo(self.header);
self.buttons.close.prependTo(self.header);
self.header.prepend(self.buttons.save);
self.container.append(controls);
self.container.append(editor);
editor.append(self.fields.script);
//add it to the page
shell.ui.window.area.append(self.container);
//set some functionality for monitoring changes
self.fields.identity
.add(self.fields.expression)
.add(self.fields.automatic)
.add(self.fields.script)
.change(function() {
self.buttons.close.unbind('click').click(self.handleChangeClose);
});
//set a default value for the url expression
self.fields.expression.val(shell.util.escapeCurrentUrl());
},
//registers all of the events for the control
register:function() {
//update the ability to drag the window
self.container.draggable({
cursor:"pointer",
handle:self.header,
opacity:0.5,
stop:function() { }
});
},
//handles saving the view
handleSave:function() {
//try and save these settings
var settings = {
url: self.fields.expression.val(),
auto: self.fields.automatic.is(":checked"),
script: self.fields.script.val(),
identity: shell.format.toIdentity(self.fields.identity.val())
};
//verify the important settings
if (settings.identity.length == 0) {
alert('The name of this custom command needs to be at least one character long.');
return;
}
//apply the new settings
shell.extension.removeCommand(identity);
shell.extension.addCommand(settings);
shell.extension.saveSettings();
//notify the user
shell.ui.alert.post({
message:["Settings for '", settings.identity, "' were saved!"].join(""),
title:"Settings Updated"
});
//then close normally
self.handleClose();
},
//handles hiding the control from the view
handleClose:function() {
self.close();
},
//handles if the dialog changed and save is pressed
handleChangeClose:function() {
if (confirm("Save your changes?")) {
self.handleSave();
}
else {
self.handleClose();
}
},
//hides and removes the dialog
close:function() {
self.container.fadeOut(
shell.ANIMATION_SPEED,
function() { self.container.remove(); }
);
},
//loads the settings for this control
loadSettings:function() {
self.fields.identity.val(identity);
//try and find a command setting
var params = jLinq.from(shell.settings.commands)
.equals("identity", identity)
.first();
//if there are settings, populate them
if (params) {
self.fields.script.val(params.script);
self.fields.expression.val(params.url);
self.fields.automatic.attr("checked", params.auto ? "checked" : "");
}
},
//show the dialog
show:function() {
self.container.fadeOut();
},
//hides the dialog box from view
hide:function() {
self.container.fadeOut();
},
//destroys the dialog box
remove:function() {
self.container.remove();
},
//initializes the designer
init:function() {
self.build();
self.register();
self.loadSettings();
//allow other fade in attempts to refresh the control
var fade = self.container.fadeIn;
self.container.fadeIn = function() {
self.loadSettings();
fade();
};
}
});
//initializes
self.init();
},
//create a dialog (or brings it to the front)
create:function(identity) {
//make sure this window isn't already open
identity = shell.format.toIdentity(identity);
var window = shell.ui.custom.findWindow(identity);
//if the window is not found, create it
if (window) {
window.fadeIn();
return;
}
//focus the window
window = new shell.ui.custom.designer(identity);
window.show();
},
//locates a window on the page (if any)
findWindow:function(identity) {
var selector = [".", shell.ui.custom.getIdentityName(identity)].join("");
var window = shell.ui.window.area.find(selector);
return window.length > 0 ? window : null;
},
//returns the class name for an identity
getIdentityName:function(identity) {
return ["jsshell-custom-", identity].join("");
}
},
//the actual text editor for the page
editor:{
//ui elements for the page
dialog:null, //the actual movable window
suggest:null, //the auto suggest box
header:null, //the header for the dialog
logo:null, //the jsshell logo
container:null, //container for the text editor
text:null, //the actual text edit box
settings:null, //the settings button
close:null,
//updates the values on the auto suggest box
updateSuggest:function() {
//make sure they want this
if (!shell.settings.showHint) { return; }
//get the position
var position = shell.ui.editor.text.getSelectionRange();
var text = shell.ui.editor.text.val().substr(0, position.start);
text = text.match(/\.?\#?[a-z0-9\-_]*$/i)[0];
//perform a lookup
var results = shell.extension.findAutocomplete(text);
if (results.length == 0) {
shell.ui.editor.suggest.hide();
return;
}
//show the help
shell.ui.editor.suggest.empty();
var list = $("<ul/>").css({
"list-style":"none",
"margin":"0",
"padding":"10px",
"overflow":"hidden"
})
.appendTo(shell.ui.editor.suggest);
//get the items to show
var show = jLinq.from(results).take(10);
//add each item to the list
$.each(show, function(i, v) {
var item = shell.ui.editor.createSuggestItem(v);
list.append(item);
});
//if there are more, say so
if (show.length < results.length) {
$("<li/>").css({
"font-family":"monospace",
"font-size":"11px",
"margin":"0",
"padding":"0",
"text-align":"right",
"padding":"3px 0",
"color":"#777"
})
.text([(results.length - show.length), " more..."].join(""))
.appendTo(list);
}
//display the list
shell.ui.editor.suggest.show();
},
//creates a list item for the auto suggest window
createSuggestItem:function(item) {
//create the text
var text = $("<div/>").css({
"font-family":"monospace",
"font-size":"11px",
"color":"#333",
"margin":"0",
"padding":"0",
"text-align":"left"
})
.text(
(item.type == "css" ? "." : item.type == "id" ? "#" : "") +
item.val
);
var style = $("<div/>").css({
"font-family":"monospace",
"font-size":"9px",
"font-style":"italics",
"color":shell.AUTOCOMPLETE_COLORS[item.type],
"float":"right",
"margin":"0",
"padding":"0"
})
.text(item.type);
//return the list item
return $("<li/>").css({
"margin":"0",
"padding":"3px 0",
"border-bottom":"1px solid #ddd"
})
.append(style)
.append(text);
},
//applies user styles to the editor
applyStyle:function() {
//applies the window styles
shell.ui.editor.dialog.css({
"background-color": shell.settings.windowColor,
"border-color": shell.settings.windowColor
});
//and the text editor styles
shell.ui.editor.text.css({
"background":shell.settings.editorColor,
"color":shell.settings.fontColor,
"border-color":shell.settings.windowColor
});
},
//displays the window for the first time
display:function(minimized) {
//position the element on the screen first
shell.ui.editor.show();
shell.ui.editor.text.focus();
//get the default location
var position = {
top:shell.EDITOR_OFFSET,
left:$(window).width() - (shell.ui.editor.dialog.width() + shell.EDITOR_OFFSET)
};
shell.ui.editor.restore = position;
//get the position for the element
if (minimized) {
var min = shell.ui.editor.getMinimizePosition();
shell.ui.editor.dialog.css({
"top":min.top,
"left":min.left,
"opacity":0.3
})
.blur();
return;
}
//animate the display
shell.ui.editor.text.select();
shell.ui.editor.dialog
.css({
opacity:0,
top:position.top + shell.EDITOR_START_OFFSET,
left:position.left
})
.stop()
.animate({
top:position.top,
opacity:1
});
},
//minimizes the window
moveTo:function(position) {
//animate the display
shell.ui.editor.text.blur();
shell.ui.editor.dialog
.stop()
.animate({
top:position.top,
left:position.left,
opacity:shell.EDITOR_OPACITY
});
},
//rebuilds the dialog window
build:function() {
//verify no other window exists
if (shell.ui.editor.dialog) {
shell.ui.editor.dialog.remove();
}
//build the rest of the control
shell.ui.editor.dialog = $("<div/>")
.clearSelf()
.css({
"width":"auto",
"height":"auto",
"padding":"0",
"margin":"0",
"position":"absolute",
"-webkit-box-shadow": "0px 1px 10px black",
"-webkit-border-radius": "10px",
"border": "2px solid",
"background": ["url(", shell.RESOURCE_URL, "dialog-background.png", ") top left repeat-x"].join(""),
"min-height":"150px",
"min-width":"200px !important"
});
shell.ui.editor.suggest = $("<div/>").css({
"padding":"0",
"margin":"0",
"position":"absolute",
"-webkit-box-shadow": "0px 1px 10px black",
"-webkit-border-radius": "10px",
"border": "1px solid #999",
"background": "#fff",
"margin":"15px 0 0 -200px",
"width":"180px"
})
.hide();
shell.ui.editor.header = $("<div/>").css({
"margin":"0",
"padding":"0 5px",
"height":"35px",
"cursor":"pointer"
})
.dblclick(function() {
if (shell.ui.editor.isMinimized()) {
shell.ui.editor.moveTo(shell.ui.editor.restore);
setTimeout(function() {
shell.ui.editor.text.focus();
}, (shell.ANIMATION_SPEED + 100));
}
else {
shell.ui.editor.moveTo(shell.ui.editor.getMinimizePosition());
}
});
shell.ui.editor.logo = $("<div/>").css({
"padding":"0",
"margin":"0",
"height":"35px",
"width":"70px",
"background": ["url(", shell.RESOURCE_URL, "logo.png", ") left no-repeat"].join(""),
"float":"left"
});
shell.ui.editor.text = $("<textarea/>")
.clearSelf()
.css({
"padding":"10px",
"margin":"0",
"width":"300px",
"height":"200px",
"border": "2px solid",
"font-family":"monospace",
"font-size":"12px",
"font-weight":"normal"
});
shell.ui.editor.container = $("<div/>").css({
"padding":"0 7px 7px 7px",
"margin":"0"
});
//create a close button
shell.ui.editor.close = $("<a/>").css({
"display":"block",
"position":"relative",
"top":"4px",
"padding":"0",
"margin":"0",
"background": ["url(", shell.RESOURCE_URL, "icon-close.png", ") right no-repeat"].join(""),
"height":"25px",
"width":"25px",
"float":"right",
"cursor":"pointer"
})
.click(shell.ui.editor.remove);
//show the help button
shell.ui.editor.settings = $("<a/>").css({
"display":"block",
"position":"relative",
"top":"4px",
"padding":"0",
"margin":"0",
"background": ["url(", shell.RESOURCE_URL, "icon-help.png", ") right no-repeat"].join(""),
"height":"25px",
"width":"25px",
"float":"right",
"cursor":"pointer"
})
.attr("href", "http://www.hugoware.net/projects/jsshell")
.attr("target", "_blank");
//build the header
shell.ui.editor.dialog.append(shell.ui.editor.suggest);
shell.ui.editor.dialog.append(shell.ui.editor.header);
shell.ui.editor.header.append(shell.ui.editor.logo);
shell.ui.editor.header.append(shell.ui.editor.close);
shell.ui.editor.header.append(shell.ui.editor.settings);
//and the editor area
shell.ui.editor.container.append(shell.ui.editor.text);
shell.ui.editor.dialog.append(shell.ui.editor.container);
//register any events
shell.ui.editor.settings.click(shell.ui.editor.events.handleSettingsClick);
//apply extra textarea functionality
shell.ui.editor.text.unbind()
.blur(function() { shell.ui.editor.blurDialog(); })
.focus(function() { shell.ui.editor.focusDialog(); });
shell.extend.textarea(shell.ui.editor.text);
shell.ui.editor.text.events.keydown = shell.ui.editor.events.handleKeyDown;
shell.ui.editor.text.events.keyup = shell.ui.editor.events.handleKeyUp;
//and setup the drag abilities
shell.ui.editor.dialog
.add(shell.ui.editor.suggest)
.draggable({
cursor:"pointer",
handle:shell.ui.editor.header,
opacity:0.5,
stop:function() {
shell.ui.editor.setRestorePosition();
shell.ui.editor.text.focus();
}
});
//apply the style automatically
shell.ui.editor.applyStyle();
},
//sets the position to restore to
setRestorePosition:function() {
shell.ui.editor.restore = shell.ui.editor.dialog.offset()
},
//returns the location to minimize to
getMinimizePosition:function() {
return {
top:$(window).height() - (shell.ui.editor.header.height()),
left:$(window).width() - (shell.ui.editor.dialog.width() + shell.EDITOR_OFFSET)
};
},
//determines if the window is already minimized or not
isMinimized:function() {
var current = shell.ui.editor.dialog.offset();