catdown-core

The core plugins for the Catdown Markdown editor. Included by default.

Events

EventEmitter extracted from CodeMirror and extended. Now allows multiple event names and is manually bound to Catdown instance.

Usage

// Add a handler to an event
editor.on("render", handler);
 
// Add a handler to multiple events
editor.on("ready change", handler);
 
// Signal an event with some args, calling any handlers listening to it.
editor.signal("something", 1, 2, 3);

Render

Accepts a preview DOM element or jQuery object. On editor ready and change events, converts editor value to HTML using the Catdown parser and displays it in the preview.

Keys

Key handling functionality. Accepts a hash of key combinations and handlers and binds to CodeMirror instance. Unlike CodeMirror's editor.setOption("extraKeys", hash);, it extends the existing keymap rather than replacing it. The syntax is identical though.

Usage

editor.keys({
    "Ctrl-Shift-Up": function(){
        // add your functionality
    }
});

Default keymap

• Ctrl-B - Bold
• Ctrl-I - Italics
• Ctrl-Alt-U - Strikethrough
• Ctrl-K - Inline code
• Ctrl-L - List
• Ctrl-Q - Blockquote
• Shift-Ctrl-L - Insert link
• Shift-Ctrl-I - Insert image

Controls

Adds some additional CodeMirror functionality to Catdown. moveCursorX, moveCursorY and wrapSelection are available in editor.controls.

moveCursorX(int)

Move cursor horizontally. Positive number goes right, negative goes left.

// Move three spaces back
editor.controls.moveCursorX(-3);

moveCursorY(int)

Move cursor vertically. Positive number goes down, negative goes up.

// Move two lines down
editor.controls.moveCursorY(2);

wrapSelections(leftStr, rightStr)

Wrap current selections between two strings. rightStr is empty by default so not required.

// Make the current selections bold
editor.controls.wrapSelection("**", "**");