109 lines
3.8 KiB
Plaintext
109 lines
3.8 KiB
Plaintext
note
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description: "Class to import a WYSIWIG editor using javascript code"
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author: "Dario Bösch <daboesch@student.ethz.ch"
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date: "$Date$"
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revision: "$Revision$"
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deferred class
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CMS_EDITOR
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feature -- Initialisation
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load_assets : STRING
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-- Loads all assest needed to show the editor
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deferred
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end
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feature -- Javascript
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javascript_replace_textarea (a_textarea : WSF_FORM_TEXTAREA): STRING
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-- Javascript code that replaces a textarea with the editor. The editor instance should be saved in editor_variable
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deferred
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end
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javascript_restore_textarea (a_textarea : WSF_FORM_TEXTAREA): STRING
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-- Javascript code that restores a textarea
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deferred
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end
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javascript_textarea_to_editor (a_textarea : WSF_FORM_TEXTAREA): STRING
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-- Javascript code to display the textarea as a WYSIWIG editor as soon as the document is loaded
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do
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Result := javascript_ready (javascript_replace_textarea (a_textarea))
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end
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javascript_textarea_to_editor_if_selected (a_textarea: WSF_FORM_TEXTAREA; a_select_field : WSF_FORM_SELECT; a_value : STRING) : STRING
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-- Javascript code to display the textarea as a WYSIWIG editor if a_select_field has a_value
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local
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initial_replace_code, on_select_replace_code: STRING
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do
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-- Javascript that replaces the textarea if a_value is selected at load time
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initial_replace_code := javascript_ready (javascript_if_selected (a_select_field, a_value, javascript_replace_textarea (a_textarea)))
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-- Javascript code that replaces the textarea as soon as value is selected at a_select_field
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on_select_replace_code := javascript_ready(
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javascript_init_editor_variable (a_textarea) +
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javascript_on_select (a_select_field, a_value,
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-- If a_value is selected, replace textarea
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javascript_replace_textarea (a_textarea),
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-- Otherwise restore it
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javascript_restore_textarea (a_textarea)
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)
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)
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Result := initial_replace_code + " " + on_select_replace_code
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end
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javascript_init_editor_variable (a_textarea : WSF_FORM_TEXTAREA) : STRING
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-- Returns the javascript code that initializes a local variable to store the editor instance
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do
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Result := "var " + editor_variable (a_textarea) + "; "
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end
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javascript_if_selected (a_select_field : WSF_FORM_SELECT; a_value : STRING; a_code : STRING) : STRING
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-- Javascript that executes a_code if a_value is selected at a_select_field
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do
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Result := "if($('#" + field_id (a_select_field) + "').val() == %"" + a_value + "%"){ " + a_code + " }"
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end
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javascript_ready (a_code : STRING) : STRING
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-- Wraps the given javascript code with a ready statement, such that it's executed when the document has loaded
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do
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Result := "$(function() { " + a_code + " });"
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end
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javascript_on_select (a_select_field : WSF_FORM_SELECT; a_value : STRING; a_then : STRING; a_else : STRING) : STRING
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-- Javascript code that executes a_then if at the given select_field the given string value is selected, otherwise it executes a_else
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do
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Result := "$('#" + field_id (a_select_field) + "').change(function(){" +
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javascript_if_selected (a_select_field, a_value, a_then) +
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"else{" +
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a_else +
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"}" +
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"});"
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end
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feature -- Helper
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field_id(a_select_field : WSF_FORM_SELECT) : STRING
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-- Returns the id of the given field
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do
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if attached a_select_field.css_id as a_id then
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Result := a_id
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else
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Result := a_select_field.name + "-select"
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end
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end
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editor_variable (a_textarea : WSF_FORM_TEXTAREA) : STRING
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-- Returns the variable name that stores the editor instance of the given textarea
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do
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Result := "cms_ckeditor_" + a_textarea.name
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end
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note
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copyright: "2011-2015, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
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license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
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end
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