Animations for scroll and zoom

A hardware device storing instructions that when executed by at least one processor perform a set of operations comprising:

• receiving an indication to initiate a scroll operation to a final viewport position;
• based on the indication to initiate the scroll operation, pre-rendering content a predetermined distance beyond an initial viewport position, a predetermined distance before the final viewport position, and in the final viewport position;
• animating the viewport the predetermined distance over the pre-rendered content beyond the initial viewport position, wherein animating the viewport results in displaying the pre-rendered content in the pre-determined distance beyond the initial viewport position;
• relocating the viewport over the pre-rendered content the predetermined distance before the final viewport position wherein content between the predetermined distance beyond the initial viewport position and the predetermined distance before the final viewport position is skipped during the animating and relocating;
• and
• animating the viewport to the final viewport position.

A system for updating content to enable smooth animation effects during scrolling, the system comprising:

• at least one processor;
• and
• a memory storing instructions that when executed by the at least one processor perform a method for updating content to enable smooth animation effects during scrolling, the method comprising:
• causing display of a portion of a document at an initial viewport position, wherein the document includes content that extends beyond the initial viewport position;
• receiving an indication to initiate a scroll operation to a final viewport position;
• based on the indication to initiate the scroll operation, pre-rendering content from the document a predetermined distance beyond the initial viewport position, a predetermined distance before the final viewport position, and in the final viewport position;
• animating the viewport the predetermined distance over the pre-rendered content beyond the initial viewport position, wherein animating the viewport results in displaying the pre-rendered content in the pre-determined distance beyond the initial viewport position;
• relocating the viewport over the pre-rendered content the predetermined distance before the final viewport position, wherein content between the predetermined distance beyond the initial viewport position and the predetermined distance before the final viewport position is skipped during the animating and relocating;
• and
• animating the viewport to the final viewport position.

A method for updating content to enable smooth animation effects during scrolling, the method comprising:

• causing display of a portion of a document at an initial viewport position, wherein the document includes content that extends beyond the initial viewport position;
• receiving an indication to initiate a scroll operation to a final viewport position;
• based on the indication to initiate the scroll operation, pre-rendering content from the document a predetermined distance beyond the initial viewport position, a predetermined distance before the final viewport position, and in the final viewport position;
• animating the viewport the predetermined distance over the pre-rendered content beyond the initial viewport position, the animation starting with a first velocity and ending with a second velocity;
• relocating the viewport over the pre-rendered content the predetermined distance before the final viewport position, wherein content between the predetermined distance beyond the initial viewport position and the predetermined distance before the final viewport position is skipped during the animating and relocating;
• and
• animating the viewport to the final viewport position, the animation starting at the second velocity to simulate one continuous scrolling operation.

A system for updating content to enable smooth animation effects during scrolling, the system comprising:

• at least one processor;
• and
• a memory storing instructions that when executed by the at least one processor perform a method for updating content to enable smooth animation effects during scrolling, the method comprising:
• causing display of a portion of a document at an initial viewport position, wherein the document includes content that extends beyond the initial viewport position;
• receiving an indication to initiate a scroll operation to a final viewport position;
• based on the indication to initiate the scroll operation, pre-rendering content from the document a predetermined distance beyond the initial viewport position, a predetermined distance before the final viewport position, and in the final viewport position;
• animating the viewport the predetermined distance over the pre-rendered content beyond the initial viewport position, wherein animating the viewport animates the viewport accelerating to a velocity;
• relocating the viewport over the pre-rendered content the predetermined distance before the final viewport position, wherein content between the predetermined distance beyond the initial viewport position and the predetermined distance before the final viewport position is skipped during the animating and relocating;
• and
• animating the viewport to the final viewport position, wherein animating the viewport to the final viewport position includes gradually reducing the velocity create a soft landing effect of the viewport into the final viewport position.