Zoom-based interface navigation

A computer-implemented method comprising:

• as implemented by one or more computing devices configured with specific executable instructions,
• retrieving a page that includes (a) page data that represents content for display and (b) code that indicates portions of the content that should be displayed at individual zoom levels of a plurality of zoom levels, wherein the code of the page indicates that display of at least a portion of content at a first zoom level of the plurality of zoom levels is contingent upon a user selection associated with a zoom level other than the first zoom level;
• determining a current zoom level for display;
• based at least in part on a subset of the page data that represents content that the code of the page indicates should be displayed at the current zoom level, generating for display an initial user interface that includes the content displayed at the current zoom level;
• receiving a request to display content at an updated zoom level other than the current zoom level;
• determining user-inputted text data within a portion of the content displayed at the current zoom level in the initial user interface;
• and
• based at least in part on the request and a subset of the page data that represents content that the code of the page indicates should be displayed at the updated zoom level, generating for display an updated user interface that includes the content to be displayed at the updated zoom level, wherein the updated user interface comprises:
• (a) an enlarged representation of at least a portion of content previously displayed in the initial user interface, and (b) dynamically generated content that was not previously displayed at any size in the initial user interface, wherein the dynamically generated content is generated subsequent to receiving the request and is generated based at least in part on the user-inputted text data within the portion of the content displayed at the current zoom level.

A computer-readable, non-transitory storage medium storing computer-executable instructions that, when executed by one or more computer systems, configure the one or more computer systems to perform operations comprising:

• receiving page data that includes content for display at each of a plurality of zoom levels and code indicating portions of the content that should be displayed at individual zoom levels of the plurality of zoom levels, wherein at least a portion of content that the code of the page indicates should be displayed at an initial zoom level is different than content that the code of the page indicates should be displayed at a second zoom level of the plurality of zoom levels;
• based at least in part on the page data, generating for display an initial user interface that includes content represented in the page data for display at the initial zoom level and does not include content represented in the page data for display at the second zoom level;
• determining user-inputted text data within a portion of the content displayed at the initial zoom level in the initial user interface;
• and
• updating the user interface in response to a request to view content at a zoom level other than the initial zoom level, wherein at least a portion of the updated user interface includes content that is determined based at least in part on (a) content that the code of the page indicates should be displayed at the second zoom level and (b) the user-inputted text data within the portion of the content displayed at the initial zoom level, wherein the updated user interface includes content not previously displayed at any size in the initial user interface.