Touch Event Model for Web Pages

Abstract

One or more touch input signals can be obtained from a touch sensitive device. A touch event model can be used to determine touch and/or gesture events based on the touch input signals. The touch and gesture events can be associated with touch input signals generated from different regions of a web page displayed on the touch sensitive device. Access can be provided to at least one touch or gesture event through a programming interface.

What is claimed is: 
     
         1 . A method, comprising:
 at a touch-sensitive electronic device with one or more processors and memory storing one or more programs for execution by the one or more processors:   displaying on a display device a graphical user interface based on an electronic document, wherein the electronic document includes instructions for processing touch events;   while displaying the graphical user interface, detecting a touch with a touch-sensitive panel;   in response to detecting the touch, providing a touch event, wherein the touch event includes touch event data and the touch event data includes a touch identifier for the touch; and   processing the touch event based on one or more instructions in the electronic document and the touch event data that includes the touch identifier for the touch.   
     
     
         2 . The method of  claim 1 , including:
 while displaying the graphical user interface, detecting multiple touches concurrently with the touch-sensitive panel;   in response to detecting the multiple touches, providing touch events, wherein a respective touch event is associated with a respective touch and includes touch event data that includes a touch identifier for the respective touch; and   processing the touch events based on the one or more instructions in the electronic document and the touch event data in the touch events.   
     
     
         3 . The method of  claim 2 , wherein:
 the multiple touches include a first touch and a second touch; and   the touch events include a first touch event that is associated with the first touch and includes touch event data that includes a first touch identifier for the first touch and a second touch event that is associated with the second touch and includes touch event data that includes a second touch identifier for the second touch.   
     
     
         4 . The method of  claim 1 , wherein the touch event data includes a pressure of the touch on the touch-sensitive panel. 
     
     
         5 . The method of  claim 1 , wherein the touch event data includes a rotation value for the touch on the touch-sensitive panel. 
     
     
         6 . The method of  claim 1 , including:
 determining whether the touch has been canceled; and   in response to determining that the touch has been canceled, sending a touch cancel event.   
     
     
         7 . The method of  claim 6 , wherein:
 the touch is deemed to be canceled based on a determination that a system event interrupts processing of the touch.   
     
     
         8 . The method of  claim 6 , wherein:
 the touch is deemed to be canceled based on a determination that the touch-sensitive panel is locked out.   
     
     
         9 . The method of  claim 6 , wherein:
 the touch is deemed to be canceled based on a determination that the touch is inadvertent.   
     
     
         10 . A touch-sensitive electronic device, comprising:
 one or more processors; and   memory storing one or more programs for execution by the one or more processors, wherein the one or more programs include instructions for:
 displaying on a display device a graphical user interface based on an electronic document, wherein the electronic document includes instructions for processing touch events; 
 while displaying the graphical user interface, detecting a touch with a touch-sensitive panel; 
 in response to detecting the touch, providing a touch event, wherein the touch event includes touch event data and the touch event data includes a touch identifier for the touch; and 
 processing the touch event based on one or more instructions in the electronic document and the touch event data that includes the touch identifier for the touch. 
   
     
     
         11 . The device of  claim 10 , wherein the one or more programs include instructions for:
 while displaying the graphical user interface, detecting multiple touches concurrently with the touch-sensitive panel;   in response to detecting the multiple touches, providing touch events, wherein a respective touch event is associated with a respective touch and includes touch event data that includes a touch identifier for the respective touch; and   processing the touch events based on the one or more instructions in the electronic document and the touch event data in the touch events.   
     
     
         12 . The device of  claim 11 , wherein:
 the multiple touches include a first touch and a second touch; and   the touch events include a first touch event that is associated with the first touch and includes touch event data that includes a first touch identifier for the first touch and a second touch event that is associated with the second touch and includes touch event data that includes a second touch identifier for the second touch.   
     
     
         13 . The device of  claim 10 , wherein the touch event data includes a pressure of the touch on the touch-sensitive panel. 
     
     
         14 . The device of  claim 10 , wherein the touch event data includes a rotation value for the touch on the touch-sensitive panel. 
     
     
         15 . The device of  claim 10 , wherein the one or more programs include instructions for:
 determining whether the touch has been canceled; and   in response to determining that the touch has been canceled, sending a touch cancel event.   
     
     
         16 . A non-transitory computer readable storage medium storing one or more programs for execution by one or more processors of a touch-sensitive electronic device, the one or more programs including instructions for:
 displaying on a display device a graphical user interface based on an electronic document, wherein the electronic document includes instructions for processing touch events;   while displaying the graphical user interface, detecting a touch with a touch-sensitive panel;   in response to detecting the touch, providing a touch event, wherein the touch event includes touch event data and the touch event data includes a touch identifier for the touch; and   processing the touch event based on one or more instructions in the electronic document and the touch event data that includes the touch identifier for the touch.   
     
     
         17 . The computer readable storage medium of  claim 16 , wherein the one or more programs include instructions for:
 while displaying the graphical user interface, detecting multiple touches concurrently with the touch-sensitive panel;   in response to detecting the multiple touches, providing touch events, wherein a respective touch event is associated with a respective touch and includes touch event data that includes a touch identifier for the respective touch; and   processing the touch events based on the one or more instructions in the electronic document and the touch event data in the touch events.   
     
     
         18 . The computer readable storage medium of  claim 17 , wherein:
 the multiple touches include a first touch and a second touch; and   the touch events include a first touch event that is associated with the first touch and includes touch event data that includes a first touch identifier for the first touch and a second touch event that is associated with the second touch and includes touch event data that includes a second touch identifier for the second touch.   
     
     
         19 . The computer readable storage medium of  claim 16 , wherein the touch event data includes a pressure of the touch on the touch-sensitive panel. 
     
     
         20 . The computer readable storage medium of  claim 16 , wherein the touch event data includes a rotation value for the touch on the touch-sensitive panel.