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| author | Julian Lunger <jlunger@google.com> | 2017-12-27 10:18:50 -0500 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2018-01-09 23:41:53 +0000 |
| commit | ecd063eccdb25cbb573d01fc512a3d40322761be (patch) | |
| tree | c190a0305bb384efe82bc08de57fede4814017d6 /public | |
| parent | 81a1ac47e5d93980b59b1c34e8cf1bb22a89a936 (diff) | |
| download | pdfium-ecd063eccdb25cbb573d01fc512a3d40322761be.tar.xz | |
Expose marked content IDs for images and alt text.
- Adds two new public bits of API:
- StructElement_GetMCID(STRUCTELEMENT) to return the marked content
ID of the struct element.
- IMAGEOBJ_METADATA.mcid to contain the marked content ID of the
image.
- Restores ContentMark::GetMCID, which was removed with other dead
code in https://pdfium-review.googlesource.com/c/pdfium/+/19170.
- Adds a couple calls to tests, including a simple new PDF to test
the struct tree marked content ID.
Bug:pdfium:957
Change-Id: I92856e43d741df989e53a575a08258da19a39f22
Reviewed-on: https://pdfium-review.googlesource.com/20632
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Diffstat (limited to 'public')
| -rw-r--r-- | public/fpdf_edit.h | 3 | ||||
| -rw-r--r-- | public/fpdf_structtree.h | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/public/fpdf_edit.h b/public/fpdf_edit.h index 3bd246b0ad..685fbdd029 100644 --- a/public/fpdf_edit.h +++ b/public/fpdf_edit.h @@ -80,6 +80,9 @@ typedef struct FPDF_IMAGEOBJ_METADATA { unsigned int bits_per_pixel; // The image's colorspace. See above for the list of FPDF_COLORSPACE_*. int colorspace; + // The image's marked content ID. Useful for pairing with associated alt-text. + // A value of -1 indicates no ID. + int marked_content_id; } FPDF_IMAGEOBJ_METADATA; #ifdef __cplusplus diff --git a/public/fpdf_structtree.h b/public/fpdf_structtree.h index 688471f28d..2e86ae65b3 100644 --- a/public/fpdf_structtree.h +++ b/public/fpdf_structtree.h @@ -75,6 +75,16 @@ FPDF_StructElement_GetAltText(FPDF_STRUCTELEMENT struct_element, void* buffer, unsigned long buflen); +// Function: FPDF_StructElement_GetMarkedContentID +// Get the marked content ID for a given element. +// Parameters: +// struct_element - Handle to the struct element. +// Return value: +// The marked content ID of the element. If no ID exists, returns +// -1. +FPDF_EXPORT int FPDF_CALLCONV +FPDF_StructElement_GetMarkedContentID(FPDF_STRUCTELEMENT struct_element); + // Function: FPDF_StructElement_GetType // Get the type (/S) for a given element. // Parameters: |