How to add a "Jump To" command?
- HTML Executable User Question:---Is it possible to insert a "goto command" anywhere in the book.
I really want to give users the chance to jump to any page in the book.
With a single HEScript custom function, you can achieve this goal. Then it is possible to call this HEScript directly from your pages (with JavaScript or links), a custom menu command or a toolbar button. In this sample, we'll create a "Jump to" toolbar button.
First you need to write the HEScript function that asks the user for the page she/he wants to display:
- Open your HTML Executable project and select the "Behavior & Scripting" tab.
Then double-click on the "UserMain" script to open the script editor as shown on the figure.
- In the script editor, insert a new script Boolean function called "JumpToChapter" (you can give it another name but remember it in that case) and paste the script available below; click on Save. The editor is closed.
function JumpToChapter: Boolean;
var
S1: String;
i: integer;
begin
Result := True;
// Asks the user for the page he wants to see.
S1 := InputBox("Please enter the number of the page you want to see:", "Jump to", "1");
// Checks if cancel.
if S1 = "" then exit;
// Checks if the page is correct by converting the string to an integer.
i := strtointdef(S1 ,0);
// Creates the page's name.
if i < 10 then
S1 := "page000" + inttostr(i)
else if i < 100 then
S1 := "page00" + inttostr(i)
else if i < 1000 then
S1 := "page0" + inttostr(i)
else
S1 := "page" + inttostr(i);
// Adds the remaining part (extension)
S1 := S1 + ".html";
// Displays the page
GoToPage(S1, "");
end;
var
S1: String;
i: integer;
begin
Result := True;
// Asks the user for the page he wants to see.
S1 := InputBox("Please enter the number of the page you want to see:", "Jump to", "1");
// Checks if cancel.
if S1 = "" then exit;
// Checks if the page is correct by converting the string to an integer.
i := strtointdef(S1 ,0);
// Creates the page's name.
if i < 10 then
S1 := "page000" + inttostr(i)
else if i < 100 then
S1 := "page00" + inttostr(i)
else if i < 1000 then
S1 := "page0" + inttostr(i)
else
S1 := "page" + inttostr(i);
// Adds the remaining part (extension)
S1 := S1 + ".html";
// Displays the page
GoToPage(S1, "");
end;
Note that in this sample, the pages have the following filename format: pg_0001.html, pg_0002.html, pg_0003.html and so on. You can customize that by modifying the script above.
Click on Save and that's all.
Now we can create a custom toolbar button.
Add a new custom button using Add.
When the button is clicked, the JumpToChapter function will be executed.
It asks your user to enter the number of the page that should be displayed:
When the user clicks OK, the page is automatically displayed.
See this link about how to call your script function using different ways:
help.htmlexe.com/index.php?show=callscript.htm∞
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