NewPageButton

/*
This template will take prompt the user to type in a title and then create a new page with that title when a button is pressed

Parameters:
    targetpath - the location to create the new page under
    sourcepage - the name of a page to copy the contents to the new page
    buttontxt - the text string to display on the button

To Do:
    Better Error handling for missing page title
    Better Error handling for special characters in page title
    Better Error handling for duplicate page title
    Better Error handling for page title over max length
    Add code to only display if the user has rights to create a new page

Credits:
    RobertM - code to create a new page from http://developer.mindtouch.com/User:robertm/Snapshot_Dynamic_Page
    DocDuck - Input box html from http://forums.developer.mindtouch.com/showthread.php?t=6673
*/

 var par = {
    targetpath: ( $0??$targetpath??page.path.."/Forum Topics"),
    sourcepage: ( $1??$sourcepage??"Template:WikiForum/pages/NewForumPost"),
    buttontxt: ( $2??$buttontxt??"Start a New Thread")
 };

// CALL NEEDED EXTENSIONS
dekiapi();

<div id="newpagediv">
    // SET UP THE PLEASE WAIT DIV, BE SURE TO HIDE IT ON LOAD IN THE CSS
    <div id="waitdiv">
        <img src="http://developer.mindtouch.com/@api/deki/files/4851/=ajax-loader.gif" id="waitgif"/>
	<br />
	"Please wait...";
    </div>
    <div id="creatediv">
        // CREATE HIDDEN VARIABLES FOR THE CTOR TO USE
	<input type="hidden" value=(par.targetpath) id="topicpath"/>
	<input type="hidden" value=(par.sourcepage) id="ppath"/>
	<input type="hidden" value=(site.uri) id="siteuri"/>
        <input type="hidden" value=(page.title .. ' - ' .. date.now) id="oldpname" />
        <input type="text" id="pname" name="pname" value="" size="35"/>
	<input type="button" value=(par.buttontxt) ctor="
            var working = false;
	    when($this.click){
                // MAKE SURE WE'RE OK TO PROCEED, THEN SHOW THE WAIT DIV, AND
                // PUBLISH A MESSAGE ON THE NEWPAGE CHANNEL WITH THE VARIABLES DEFINED ABOVE
                if (working == false){
                    working = true;
	    	    #creatediv.hide();
	    	    #waitdiv.show();
	    	    @newpage({siteuri: #siteuri.val(), pname: #pname.val(), topicpath: #topicpath.val(), ppath: #ppath.val()});                                
	        };
            }

	    when(@newpage) {
                // DEFINE THE PAGE PATH, THEN GET THE PAGE API SO WE CAN CREATE THE PAGE
	        var page_path = @newpage.topicpath + '/' + @newpage.pname; 
                var site_api = {{site.api}};
                var page_api = site_api + '/pages/=' + Deki.url.encode(Deki.url.encode(page_path));
	        MindTouch.Web.Get(page_api, null, function(xhr){
                    // SUCCESSFULLY DID THE WEB.GET... LET'S CHECK TO MAKE SURE THE 
                    // PAGE DOESN'T ALREADY EXIST - THIS IS UNLIKELY GIVEN THE 
                    // UNIQUE TITLE, BUT BETTER SAFE THAN SORRY
		    if (xhr.status == '200'){                                
		        alert('That page already exists. Please choose a different name.');
		        #creatediv.show();
		        #waitdiv.hide();
		        #pname.val('Enter ' + {{string.tolower(buttonname)}} + ' name');
                        working = false;
		    };
		    if (xhr.status == '404'){   
                        // PAGE DOESN'T EXIST, SO LET'S GET THE API FOR THE CURRENT PAGE
                        var cpagepath = @newpage.ppath;
                        //var cpagepath = @newpage.topicpath;
                        var template_api = site_api + '/pages/=' + Deki.url.encode(Deki.url.encode(cpagepath));
                        // ATTEMPT TO CREATE THE PAGE IN SAVE MODE
                        MindTouch.Deki.ReadPageContents(template_api, { mode: 'view' },
				    function(xhr) {
				        // lookup body[not(target)]
				        var contents = $(xhr.xml).find('body:not([target])').text();
				        // use as content on UpdatePage
				        var api_params = {
				            mode: 'edit'
				        };
				        MindTouch.Deki.UpdatePageContents(page_api, contents, api_params, 
                                            function(){
                                                // SUCCESS! LET'S GO TO THAT PAGE NOW
                                                @loadnewpage({siteuri: @newpage.siteuri, ppath: @newpage.topicpath, pname: @newpage.pname}); 
                                            },
                        		    function(){
                                                // FAIL! LET THE USER KNOW SOMETHING BROKE
		                                alert('Page create failed. Please try again.');
                                                working = false; 
				            });
                                    }
			    );
                    }   
                }, 
	        function(){
                    // THE WEB.GET HAS FAILED. LET THE USER KNOW
		    alert('Page read failed. Status: ' + xhr.statusText);    
                    working = false;				       
                });    
	    };
    
	    when(@loadnewpage) {
                // LOAD THE NEW PAGE IN THE CURRENT BROWSER WINDOW
	        var newpath = (@loadnewpage.siteuri + @loadnewpage.ppath + '/' + @loadnewpage.pname);
	        window.location = (newpath);
	    };
        "/> 
    </div>
</div>

<style type="text/css">"

#waitdiv {
    display: none;
    text-align: center;
}

#creatediv {
    text-align: left;
}

"</style>